#515F7B
Closest named color: Dusty Grape (#545775). oklch(48.5% 0.049 264), rgb(81, 95, 123).
Aa
White text reads best on this color (6.41:1).
About this color
#515F7B is a medium-dark, muted blue. In OKLCH its lightness is 48%, its chroma 0.049 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.023 away. White text reads best on it, at 6.41:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.27:1 |
| White text | 6.41:1 |
Values
| HEX | #515F7B |
| RGB | rgb(81, 95, 123) |
| HSL | hsl(220, 21%, 40%) |
| OKLCH | oklch(48.5% 0.049 264) |
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 #515F7B | 6.41:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #515F7B | 3.27:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #515F7B text on white | 6.41:1 | AA | Lc 81.9 | Fine for body text |
| #515F7B text on black | 3.27:1 | AA large text | Lc -20.0 | 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
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D5D9E2
oklch(88.5% 0.013 266.7)
-
Step 300
300
#B9C1D0
oklch(80.9% 0.023 263.2)
-
Step 400
400
#95A1B9
oklch(70.8% 0.038 264.3)
-
Step 500
500
#7B8AA7
oklch(63.2% 0.047 263.5)
-
Step 600
600
#647393
oklch(55.6% 0.053 265.1)
-
Step 700
700 (this color)
#515F7B
oklch(48.5% 0.049 264)
-
Step 800
800
#444F65
oklch(42.7% 0.039 264)
-
Step 900
900
#394253
oklch(37.8% 0.032 263)
-
Step 950
950
#212630
oklch(26.8% 0.02 264.2)
#515F7B 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) | #56617C | 0.010 |
| Deuteranopia (no green cones) | #525D7A | 0.006 |
| Tritanopia (no blue cones) | #456568 | 0.044 |
| Achromatopsia (no color) | #5F5F5F | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #515F7B
#515F7B
oklch(48.5% 0.049 264)
- #6C5D3F
#6C5D3F
oklch(48.5% 0.048 84.2)
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 #515F7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.023
- Slate #516572 ΔE 0.027
- YInMn Blue #415A77 ΔE 0.028
- Denim #3B638C ΔE 0.035
- Dusk #4E5481 ΔE 0.038
- Dusky Blue #475F94 ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.051
Use #515F7B 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.