#515C79
Closest named color: Dusty Grape (#545775). oklch(47.7% 0.049 268.4), rgb(81, 92, 121).
Aa
White text reads best on this color (6.65:1).
About this color
#515C79 is a medium-dark, muted blue. In OKLCH its lightness is 48%, its chroma 0.049 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.015 away. White text reads best on it, at 6.65:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.15:1 |
| White text | 6.65:1 |
Values
| HEX | #515C79 |
| RGB | rgb(81, 92, 121) |
| HSL | hsl(224, 20%, 40%) |
| OKLCH | oklch(47.7% 0.049 268.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #515C79 | 6.65:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #515C79 | 3.15:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #515C79 text on white | 6.65:1 | AA | Lc 82.9 | Fine for body text |
| #515C79 text on black | 3.15:1 | AA large text | Lc -19.1 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8EAEF
oklch(93.7% 0.007 268.5)
-
Step 200
200
#D5D9E2
oklch(88.5% 0.013 266.7)
-
Step 300
300
#BAC0D0
oklch(80.8% 0.023 269.4)
-
Step 400
400
#96A0B9
oklch(70.6% 0.038 268.1)
-
Step 500
500
#7D89A8
oklch(63.2% 0.049 268.4)
-
Step 600
600
#667393
oklch(55.7% 0.052 267.5)
-
Step 700
700 (this color)
#515C79
oklch(47.7% 0.049 268.4)
-
Step 800
800
#454E66
oklch(42.6% 0.042 268.6)
-
Step 900
900
#3A4153
oklch(37.6% 0.032 268.2)
-
Step 950
950
#222630
oklch(26.9% 0.02 267.9)
#515C79 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #535E7A | 0.007 |
| Deuteranopia (no green cones) | #4F5B78 | 0.005 |
| Tritanopia (no blue cones) | #466266 | 0.044 |
| Achromatopsia (no color) | #5C5C5C | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #515C79
#515C79
oklch(47.7% 0.049 268.4)
- #685C3C
#685C3C
oklch(47.8% 0.05 89.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #515C79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.015
- YInMn Blue #415A77 ΔE 0.024
- Dusk #4E5481 ΔE 0.031
- Slate #516572 ΔE 0.033
- Denim #3B638C ΔE 0.039
- Dusky Blue #475F94 ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.049
- Denim Blue #3B5B92 ΔE 0.049
Use #515C79 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.