#51607D
Closest named color: Dusty Grape (#545775). oklch(48.8% 0.05 263.3), rgb(81, 96, 125).
Aa
White text reads best on this color (6.32:1).
About this color
#51607D is a medium-dark, muted blue. In OKLCH its lightness is 49%, its chroma 0.050 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.026 away. White text reads best on it, at 6.32:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.31:1 |
| White text | 6.32:1 |
Values
| HEX | #51607D |
| RGB | rgb(81, 96, 125) |
| HSL | hsl(220, 21%, 40%) |
| OKLCH | oklch(48.8% 0.05 263.3) |
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 #51607D | 6.32:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #51607D | 3.31:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #51607D text on white | 6.32:1 | AA | Lc 81.5 | Fine for body text |
| #51607D text on black | 3.31:1 | AA large text | Lc -20.4 | 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
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D4D9E2
oklch(88.4% 0.013 262.4)
-
Step 300
300
#B8C1D1
oklch(80.9% 0.025 262.1)
-
Step 400
400
#94A1BA
oklch(70.7% 0.039 263.5)
-
Step 500
500
#7A8AA8
oklch(63.1% 0.049 262.9)
-
Step 600
600
#637394
oklch(55.5% 0.055 264.5)
-
Step 700
700 (this color)
#51607D
oklch(48.8% 0.05 263.3)
-
Step 800
800
#434F66
oklch(42.7% 0.041 263.2)
-
Step 900
900
#394253
oklch(37.8% 0.032 263)
-
Step 950
950
#212731
oklch(27.1% 0.021 260.6)
#51607D 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) | #56627E | 0.010 |
| Deuteranopia (no green cones) | #525E7C | 0.006 |
| Tritanopia (no blue cones) | #44666A | 0.045 |
| Achromatopsia (no color) | #606060 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51607D
#51607D
oklch(48.8% 0.05 263.3)
- #6E5E3E
#6E5E3E
oklch(48.9% 0.051 84.1)
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 #51607D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.026
- Slate #516572 ΔE 0.027
- YInMn Blue #415A77 ΔE 0.031
- Denim #3B638C ΔE 0.033
- Dusk #4E5481 ΔE 0.039
- Dusky Blue #475F94 ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.051
Use #51607D 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.