#37466F
Closest named color: Dark Grey Blue (#29465B). oklch(40.1% 0.072 267.8), rgb(55, 70, 111).
Aa
White text reads best on this color (9.25:1).
About this color
#37466F is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.072 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.041 away. White text reads best on it, at 9.25:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.26:1 |
| White text | 9.25:1 |
Values
| HEX | #37466F |
| RGB | rgb(55, 70, 111) |
| HSL | hsl(224, 34%, 33%) |
| OKLCH | oklch(40.1% 0.072 267.8) |
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 #37466F | 9.25:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #37466F | 2.26:1 | Fails | Lc 12.7 | Not readable |
| #37466F text on white | 9.25:1 | AAA | Lc 91.3 | Preferred for body text |
| #37466F text on black | 2.26:1 | Fails | Lc -11.1 | 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
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9EE
oklch(88.5% 0.031 267.2)
-
Step 300
300
#B1C0E5
oklch(80.9% 0.055 267.8)
-
Step 400
400
#899FD7
oklch(70.7% 0.086 267.6)
-
Step 500
500
#6C86CD
oklch(63% 0.112 267.9)
-
Step 600
600
#556FBA
oklch(55.7% 0.121 267.9)
-
Step 700
700
#455CA0
oklch(49% 0.113 268)
-
Step 800
800
#394C82
oklch(42.8% 0.093 267.8)
-
Step 900
900 (this color)
#37466F
oklch(40.1% 0.072 267.8)
-
Step 950
950
#1D253D
oklch(26.9% 0.046 269.1)
#37466F 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) | #374A71 | 0.012 |
| Deuteranopia (no green cones) | #31456E | 0.009 |
| Tritanopia (no blue cones) | #214F55 | 0.065 |
| Achromatopsia (no color) | #474747 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37466F
#37466F
oklch(40.1% 0.072 267.8)
- #584511
#584511
oklch(40% 0.072 87.9)
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 #37466F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.041
- Light Navy #155084 ΔE 0.048
- Twilight Blue #0A437A ΔE 0.048
- Deep Sea Blue #015482 ΔE 0.055
- Charcoal #264653 ΔE 0.055
- Dusk Blue #26538D ΔE 0.057
- Cobalt #1E488F ΔE 0.058
- Dusk #4E5481 ΔE 0.061
Use #37466F 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.