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Sure Tyr Verdigris

#45a7a0
Notes

Sure Tyr Verdigris (#45A7A0) is a true cyan with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (176°, 42%, 46%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#45a7a0
RGB
rgb(69, 167, 160)
HSL
hsl(176, 42%, 46%)
HWB
hwb(176 27% 35%)
OKLCH
oklch(66.9% 0.092 188.7)
P3
color(display-p3 0.3774 0.6465 0.6255)
HSV
hsv(176, 59%, 65%)
LAB
lab(62.88% -30.15 -4.98)
LCH
lch(62.88% 30.56 189.37)
CMYK
cmyk(59%, 0%, 4%, 35%)

Etymology

Sure
adjective

Old French seur, certain — used as a color modifier since the medieval period for hues that read as confident and stable. Sure red, sure blue: moderate saturation combined with optical commitment. Sits at the crisp-bucket center alongside steady and true.

Tyr
modifier

Old Norse Týr, one-handed-god-of-justice-and-war. As a color modifier, tyr implies a one-handed-god-and-Fenrir-binding-and-justice quality, the visual register of Norse-Tyr-and-Fenrir-binding hand-one-handed-god-and-Fenrir-binding-and-justice Norse-Tyr-and-Fenrir-binding-and-Tiwaz-rune tyr-and-one-handed-god-and-Fenrir-binding surfaces under Norse-Tyr-and-Fenrir-binding-and-Tiwaz-rune Asgard-pantheon-and-Tiwaz-rune-stone justice-and-binding-light. Sits at the modifier-and-myth end of the grid, parallel to thor and odin in usage.

Verdigris
noun

The basic copper carbonate that forms on weathered copper and bronze — the pigment scraped from oxidized metal and used in Renaissance painting before being supplanted by more stable greens. The color refers to a thick verdigris on aged copper roofing or the Statue of Liberty's surface: a soft, slightly muted blue-green with the powdery finish of mineral oxide. Cooler than patina, warmer than seafoam, with the archaeological weight of a mineral made by time.

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.

#45a7a0
Original
#9e9fa0
Protanopia
#8f93a1
Deuteranopia
#00aba5
Tritanopia
#929292
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).
Failon White
2.88:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
7.29:1

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
##45A7A0
Display P3
Display P3
color(display-p3 0.3774 0.6465 0.6255)
P3 has subtle headroomOKLCH chroma 0.092

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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