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Unblemished Yogyakarta

#0f559a
Notes

Unblemished Yogyakarta (#0F559A) is a deep azure 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 (210°, 82%, 33%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#0f559a
RGB
rgb(15, 85, 154)
HSL
hsl(210, 82%, 33%)
HWB
hwb(210 6% 40%)
OKLCH
oklch(44.8% 0.130 253.2)
P3
color(display-p3 0.1519 0.3282 0.5846)
HSV
hsv(210, 90%, 60%)
LAB
lab(35.85% 6.71 -43.30)
LCH
lch(35.85% 43.82 278.81)
CMYK
cmyk(90%, 45%, 0%, 40%)

Etymology

Unblemished
adjective

Old French blesmir, to wound — negative-prefix un- plus past-participle of blemish. As a color modifier, unblemished implies a clear-and-flawless quality where the hue carries no defect or imperfection. Sits at the crisp-and-clean end of the grid, parallel to pristine and spotless in usage.

Yogyakarta
noun

The Indonesian Javanese cultural capital — and the deep blue of batik textiles produced in the Kraton (royal palace) and Imogiri royal-cemetery workshops. Yogyakarta color refers to a batik tulis deep-blue silk: a saturated, slightly cool deep blue with the satin finish of indigo-and-soga (resist-dye) batik.

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.

#0f559a
Original
#315b9d
Protanopia
#124f99
Deuteranopia
#006670
Tritanopia
#4b4b4b
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
7.54:1
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
2.79:1

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
##0F559A
Display P3
Display P3
color(display-p3 0.1519 0.3282 0.5846)
P3 has subtle headroomOKLCH chroma 0.130

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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