#37446A
Closest named color: Dark Grey Blue (#29465B). oklch(39.3% 0.067 268.8), rgb(55, 68, 106).
Aa
White text reads best on this color (9.55:1).
About this color
#37446A is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.067 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.035 away. White text reads best on it, at 9.55:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.19:1 |
| White text | 9.55:1 |
Values
| HEX | #37446A |
| RGB | rgb(55, 68, 106) |
| HSL | hsl(225, 32%, 32%) |
| OKLCH | oklch(39.3% 0.067 268.8) |
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 #37446A | 9.55:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #37446A | 2.19:1 | Fails | Lc 11.9 | Not readable |
| #37446A text on white | 9.55:1 | AAA | Lc 92.1 | Preferred for body text |
| #37446A text on black | 2.19:1 | Fails | Lc -10.3 | 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
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D1D9EC
oklch(88.5% 0.028 267.5)
-
Step 300
300
#B3C0E2
oklch(80.9% 0.05 268.8)
-
Step 400
400
#8C9FD3
oklch(70.7% 0.079 268.8)
-
Step 500
500
#7086C8
oklch(63% 0.103 269.3)
-
Step 600
600
#586FB5
oklch(55.6% 0.112 268.8)
-
Step 700
700
#485D9B
oklch(49.1% 0.103 268.3)
-
Step 800
800
#3C4C7E
oklch(42.7% 0.086 269.1)
-
Step 900
900 (this color)
#37446A
oklch(39.3% 0.067 268.8)
-
Step 950
950
#1E253B
oklch(26.9% 0.042 269.9)
#37446A 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) | #36486C | 0.012 |
| Deuteranopia (no green cones) | #314369 | 0.009 |
| Tritanopia (no blue cones) | #244C52 | 0.060 |
| Achromatopsia (no color) | #454545 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37446A
#37446A
oklch(39.3% 0.067 268.8)
- #544415
#544415
oklch(39.3% 0.067 89.9)
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 #37446A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.035
- Charcoal #264653 ΔE 0.049
- Twilight Blue #0A437A ΔE 0.050
- Light Navy #155084 ΔE 0.055
- Deep Sea Blue #015482 ΔE 0.062
- Cobalt #1E488F ΔE 0.065
- Dark Blue Grey #1F3B4D ΔE 0.065
- Dusk Blue #26538D ΔE 0.066
Use #37446A 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.