#515A72
Closest named color: Dusty Grape (#545775). oklch(46.9% 0.041 268.8), rgb(81, 90, 114).
Aa
White text reads best on this color (6.87:1).
About this color
#515A72 is a medium-dark, muted blue. In OKLCH its lightness is 47%, its chroma 0.041 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.012 away. White text reads best on it, at 6.87:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.05:1 |
| White text | 6.87:1 |
Values
| HEX | #515A72 |
| RGB | rgb(81, 90, 114) |
| HSL | hsl(224, 17%, 38%) |
| OKLCH | oklch(46.9% 0.041 268.8) |
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 #515A72 | 6.87:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #515A72 | 3.05:1 | AA large text | Lc 20.3 | Dividers and decoration only |
| #515A72 text on white | 6.87:1 | AA | Lc 83.8 | Fine for body text |
| #515A72 text on black | 3.05:1 | AA large text | Lc -18.2 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D6D9E1
oklch(88.5% 0.011 269.5)
-
Step 300
300
#BBC0CE
oklch(80.8% 0.02 270.2)
-
Step 400
400
#98A0B5
oklch(70.6% 0.032 269)
-
Step 500
500
#7F89A3
oklch(63.1% 0.041 268.6)
-
Step 600
600
#69738E
oklch(55.7% 0.044 269)
-
Step 700
700 (this color)
#515A72
oklch(46.9% 0.041 268.8)
-
Step 800
800
#474F62
oklch(42.8% 0.033 267.1)
-
Step 900
900
#3C4150
oklch(37.7% 0.027 270.6)
-
Step 950
950
#23262F
oklch(26.9% 0.017 270.7)
#515A72 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) | #535C73 | 0.007 |
| Deuteranopia (no green cones) | #505971 | 0.004 |
| Tritanopia (no blue cones) | #485F62 | 0.037 |
| Achromatopsia (no color) | #5A5A5A | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #515A72
#515A72
oklch(46.9% 0.041 268.8)
- #645A40
#645A40
oklch(47% 0.041 89.4)
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 #515A72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.012
- YInMn Blue #415A77 ΔE 0.023
- Slate #516572 ΔE 0.034
- Dusk #4E5481 ΔE 0.035
- Denim #3B638C ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.054
- Dusky Blue #475F94 ΔE 0.054
- Twilight #4E518B ΔE 0.055
Use #515A72 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.