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Squared Wraith Topaz

#135f7c
Notes

Squared Wraith Topaz (#135F7C) is a deep cyan with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (197°, 73%, 28%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#135f7c
RGB
rgb(19, 95, 124)
HSL
hsl(197, 73%, 28%)
HWB
hwb(197 7% 51%)
OKLCH
oklch(45.6% 0.083 229.5)
P3
color(display-p3 0.1744 0.3669 0.4753)
HSV
hsv(197, 85%, 49%)
LAB
lab(37.44% -11.24 -22.55)
LCH
lch(37.44% 25.20 243.50)
CMYK
cmyk(85%, 23%, 0%, 51%)

Etymology

Squared
adjective

Latin quadrātus, four-sided — past-participle of square. As a color modifier, squared implies a clear-and-rectilinear-and-orthogonal quality where the hue carries the visual register of right-angle architectural-and-grid alignment. Sits at the crisp-and-balanced end of the grid, parallel to aligned and plumb in usage.

Wraith
modifier

Scots wraith, ghost-or-apparition. As a color modifier, wraith implies a ghostly-and-pale-and-apparitional quality, the visual register of Highland-Scots-and-Border-Ballad-wraith hand-ghostly-and-pale-and-apparitional Highland-Scots-and-Border-Ballad-and-Hebridean wraith-and-ghostly-and-pale surfaces under Highland-Scots-and-Border-Ballad-and-Hebridean moonlit-and-mist-shrouded-and-pale graveyard-and-tarn-light. Sits at the modifier-and-mood end of the grid, parallel to pall and gloam in usage.

Topaz
noun

A fluorine aluminum silicate gem, hardness 8 on the Mohs scale, mined for centuries in Ouro Preto, Brazil. Imperial topaz is the prized variety: a warm, slightly pink-shifted gold-orange with the high refractive index of a quality cut stone. Cooler than amber, brighter than honey, with the gem's signature internal fire when held to light. Named for the island of Topazos in the Red Sea, though that source produced peridot instead.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#135f7c
Original
#505e7d
Protanopia
#42547c
Deuteranopia
#006769
Tritanopia
#515151
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon White
7.11:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.96:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##135F7C
Display P3
Display P3
color(display-p3 0.1744 0.3669 0.4753)
P3 has subtle headroomOKLCH chroma 0.083

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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