#0D2A37
Closest named color: Oxford Blue (#1B263B). oklch(27% 0.042 230.5), rgb(13, 42, 55).
Aa
White text reads best on this color (14.96:1).
About this color
#0D2A37 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.042 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.023 away. White text reads best on it, at 14.96:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.40:1 |
| White text | 14.96:1 |
Values
| HEX | #0D2A37 |
| RGB | rgb(13, 42, 55) |
| HSL | hsl(199, 62%, 13%) |
| OKLCH | oklch(27% 0.042 230.5) |
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 #0D2A37 | 14.96:1 | AAA | Lc -104.5 | Preferred for body text |
| Black text on #0D2A37 | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #0D2A37 text on white | 14.96:1 | AAA | Lc 101.7 | Preferred for body text |
| #0D2A37 text on black | 1.40:1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE8
oklch(88.5% 0.027 230.4)
-
Step 300
300
#A1C7DB
oklch(80.9% 0.049 231.1)
-
Step 400
400
#6AAAC9
oklch(70.7% 0.08 230.4)
-
Step 500
500
#3C94BB
oklch(63% 0.101 230.6)
-
Step 600
600
#057EA7
oklch(55.6% 0.11 230.2)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#025775
oklch(42.8% 0.085 230.6)
-
Step 900
900
#12485E
oklch(37.8% 0.066 229.9)
-
Step 950
950 (this color)
#0D2A37
oklch(27% 0.042 230.5)
#0D2A37 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) | #232938 | 0.028 |
| Deuteranopia (no green cones) | #1E2537 | 0.026 |
| Tritanopia (no blue cones) | #002E2E | 0.028 |
| Achromatopsia (no color) | #272727 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D2A37
#0D2A37
oklch(27% 0.042 230.5)
- #372013
#372013
oklch(27% 0.042 49.7)
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 #0D2A37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.023
- Dark #1B2431 ΔE 0.024
- Jet #212529 ΔE 0.034
- Space Cadet #2B2D42 ΔE 0.049
- Gunmetal #293241 ΔE 0.051
- Rich Black #0D1B2A ΔE 0.054
- Midnight Green #073B4C ΔE 0.062
- Prussian Blue #1D3557 ΔE 0.068
Use #0D2A37 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.