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Straightforward Ruri

#28517e
Notes

Straightforward Ruri (#28517E) is a deep azure 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 (211°, 52%, 33%) 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
#28517e
RGB
rgb(40, 81, 126)
HSL
hsl(211, 52%, 33%)
HWB
hwb(211 16% 51%)
OKLCH
oklch(42.8% 0.088 252.5)
P3
color(display-p3 0.1966 0.3138 0.4803)
HSV
hsv(211, 68%, 49%)
LAB
lab(33.65% 1.23 -29.67)
LCH
lch(33.65% 29.70 272.37)
CMYK
cmyk(68%, 36%, 0%, 51%)

Etymology

Straightforward
adjective

English compound straight + forward — sharing root with German geradeaus. As a color modifier, straightforward implies a clear-and-direct-and-unencumbered quality where the hue carries the visual register of clear-aim-and-uncomplicated character. Sits at the crisp-and-honest end of the grid, parallel to candid and direct in usage.

Ruri
noun

The Japanese name for lapis lazuli — used since the Heian period for the deep blue of carved Buddhist altar ornament and the imported pigment of Japanese Buddhist painting. Ruri-iro (瑠璃色) names a saturated dark blue distinct from ai-iro. The color refers to a polished Japanese-cut lapis cabochon: a saturated, slightly cool deep blue with the matte finish of fine lapis.

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.

#28517e
Original
#3d5480
Protanopia
#314b7d
Deuteranopia
#005b61
Tritanopia
#4c4c4c
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
8.18:1
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
2.57:1

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
##28517E
Display P3
Display P3
color(display-p3 0.1966 0.3138 0.4803)
P3 has subtle headroomOKLCH chroma 0.088

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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