#515A71
Closest named color: Dusty Grape (#545775). oklch(46.9% 0.039 268.2), rgb(81, 90, 113).
Aa
White text reads best on this color (6.88:1).
About this color
#515A71 is a medium-dark, muted blue. In OKLCH its lightness is 47%, its chroma 0.039 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.013 away. White text reads best on it, at 6.88:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.05:1 |
| White text | 6.88:1 |
Values
| HEX | #515A71 |
| RGB | rgb(81, 90, 113) |
| HSL | hsl(223, 16%, 38%) |
| OKLCH | oklch(46.9% 0.039 268.2) |
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 #515A71 | 6.88:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #515A71 | 3.05:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #515A71 text on white | 6.88:1 | AA | Lc 83.8 | Fine for body text |
| #515A71 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
#D6D9E0
oklch(88.5% 0.01 267.4)
-
Step 300
300
#BBC0CD
oklch(80.8% 0.019 269)
-
Step 400
400
#98A0B4
oklch(70.6% 0.031 268.2)
-
Step 500
500
#7F89A2
oklch(63.1% 0.039 268.1)
-
Step 600
600
#69738D
oklch(55.7% 0.042 268.5)
-
Step 700
700 (this color)
#515A71
oklch(46.9% 0.039 268.2)
-
Step 800
800
#474F61
oklch(42.8% 0.032 266.2)
-
Step 900
900
#3C414F
oklch(37.6% 0.025 269.7)
-
Step 950
950
#23262E
oklch(26.9% 0.016 269.1)
#515A71 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) | #535C72 | 0.007 |
| Deuteranopia (no green cones) | #505970 | 0.004 |
| Tritanopia (no blue cones) | #495E62 | 0.034 |
| Achromatopsia (no color) | #5A5A5A | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #515A71
#515A71
oklch(46.9% 0.039 268.2)
- #645A41
#645A41
oklch(47% 0.04 88.7)
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 #515A71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.013
- YInMn Blue #415A77 ΔE 0.023
- Slate #516572 ΔE 0.033
- Dusk #4E5481 ΔE 0.036
- Denim #3B638C ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.055
- Dusky Blue #475F94 ΔE 0.056
- Twilight #4E518B ΔE 0.057
Use #515A71 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.