#0D2437
Closest named color: Dark (#1B2431). oklch(25.2% 0.046 246), rgb(13, 36, 55).
Aa
White text reads best on this color (15.85:1).
About this color
#0D2437 is a dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.046 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.021 away. White text reads best on it, at 15.85:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.32:1 |
| White text | 15.85:1 |
Values
| HEX | #0D2437 |
| RGB | rgb(13, 36, 55) |
| HSL | hsl(207, 62%, 13%) |
| OKLCH | oklch(25.2% 0.046 246) |
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 #0D2437 | 15.85:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #0D2437 | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #0D2437 text on white | 15.85:1 | AAA | Lc 102.7 | Preferred for body text |
| #0D2437 text on black | 1.32:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#C9DCED
oklch(88.6% 0.031 245.1)
-
Step 300
300
#A4C5E3
oklch(80.9% 0.055 246)
-
Step 400
400
#72A6D4
oklch(70.6% 0.087 246.1)
-
Step 500
500
#4A8FC9
oklch(63% 0.112 246.2)
-
Step 600
600
#2878B6
oklch(55.5% 0.123 246.3)
-
Step 700
700
#1A659D
oklch(49.1% 0.114 246.3)
-
Step 800
800
#19537F
oklch(42.8% 0.094 245.8)
-
Step 900
900
#1C4566
oklch(37.8% 0.073 245.8)
-
Step 950
950 (this color)
#0D2437
oklch(25.2% 0.046 246)
#0D2437 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) | #1C2538 | 0.021 |
| Deuteranopia (no green cones) | #162037 | 0.017 |
| Tritanopia (no blue cones) | #00292B | 0.035 |
| Achromatopsia (no color) | #222222 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D2437
#0D2437
oklch(25.2% 0.046 246)
- #311D07
#311D07
oklch(25.2% 0.046 65.6)
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 #0D2437, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.021
- Oxford Blue #1B263B ΔE 0.022
- Rich Black #0D1B2A ΔE 0.036
- Jet #212529 ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.059
- Gunmetal #293241 ΔE 0.066
- Navy Blue #001146 ΔE 0.073
- Marine #042E60 ΔE 0.077
Use #0D2437 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.