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Sunken Kikyo

#581e78
Notes

Sunken Kikyo (#581E78) is a deep indigo 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 (279°, 60%, 29%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#581e78
RGB
rgb(88, 30, 120)
HSL
hsl(279, 60%, 29%)
HWB
hwb(279 12% 53%)
OKLCH
oklch(37.1% 0.148 310.6)
HSV
hsv(279, 75%, 47%)
LAB
lab(24.83% 42.03 -39.77)
LCH
lch(24.83% 57.86 316.59)
CMYK
cmyk(27%, 75%, 0%, 53%)

Etymology

Sunken
adjective

The past participle of sink — used as a color modifier since the eighteenth century for surfaces that read as receded or enclosed. Sunken implies a slightly cool darkness with the optical quality of a recessed plane: the sunken eye sockets of a sculpture, the depressed channels of an Anglo-Saxon enamel. Sits in the deep-and-cool corner, closer to shadowed than to brooding.

Kikyo
noun

Japanese 桔梗, the balloon flower (Platycodon grandiflorus) — a wild perennial of Japanese mountainsides whose star-shaped corolla unfurls from an inflated bud. The flower is one of the Seven Autumn Flowers of classical waka poetry. Kikyo color refers to a fully unfurled Platycodon grandiflorus corolla: a saturated, slightly cool deep violet with the velvet finish of fresh balloon-flower petals.

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

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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.

#581e78
Original
#00387b
Protanopia
#0d3c76
Deuteranopia
#543249
Tritanopia
#313131
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
11.22:1
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
1.87:1

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