#37466E
Closest named color: Dark Grey Blue (#29465B). oklch(40% 0.071 267.6), rgb(55, 70, 110).
Aa
White text reads best on this color (9.27:1).
About this color
#37466E is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.071 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.039 away. White text reads best on it, at 9.27:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.26:1 |
| White text | 9.27:1 |
Values
| HEX | #37466E |
| RGB | rgb(55, 70, 110) |
| HSL | hsl(224, 33%, 32%) |
| OKLCH | oklch(40% 0.071 267.6) |
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 #37466E | 9.27:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #37466E | 2.26:1 | Fails | Lc 12.6 | Not readable |
| #37466E text on white | 9.27:1 | AAA | Lc 91.3 | Preferred for body text |
| #37466E text on black | 2.26:1 | Fails | Lc -11.0 | Not readable |
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 900.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D0D9ED
oklch(88.5% 0.029 266.4)
-
Step 300
300
#B2C0E4
oklch(80.9% 0.053 268.5)
-
Step 400
400
#899FD6
oklch(70.6% 0.085 267.4)
-
Step 500
500
#6D87CB
oklch(63.2% 0.107 267.4)
-
Step 600
600
#556FB8
oklch(55.5% 0.118 267.7)
-
Step 700
700
#455D9F
oklch(49.2% 0.11 267.3)
-
Step 800
800
#394C80
oklch(42.7% 0.09 267.4)
-
Step 900
900 (this color)
#37466E
oklch(40% 0.071 267.6)
-
Step 950
950
#1D253C
oklch(26.9% 0.045 268.7)
#37466E 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) | #374A70 | 0.012 |
| Deuteranopia (no green cones) | #31456D | 0.009 |
| Tritanopia (no blue cones) | #214E55 | 0.062 |
| Achromatopsia (no color) | #474747 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37466E
#37466E
oklch(40% 0.071 267.6)
- #584513
#584513
oklch(40% 0.071 87.3)
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 #37466E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.039
- Twilight Blue #0A437A ΔE 0.048
- Light Navy #155084 ΔE 0.048
- Charcoal #264653 ΔE 0.054
- Deep Sea Blue #015482 ΔE 0.056
- Dusk Blue #26538D ΔE 0.058
- Cobalt #1E488F ΔE 0.059
- Dusk #4E5481 ΔE 0.062
Use #37466E 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.