#212237
Closest named color: Oxford Blue (#1B263B). oklch(26.1% 0.039 281.2), rgb(33, 34, 55).
Aa
White text reads best on this color (15.57:1).
About this color
#212237 is a dark, muted purple. In OKLCH its lightness is 26%, its chroma 0.039 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.016 away. White text reads best on it, at 15.57:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.34:1 |
| White text | 15.57:1 |
Values
| HEX | #212237 |
| RGB | rgb(33, 34, 55) |
| HSL | hsl(237, 25%, 17%) |
| OKLCH | oklch(26.1% 0.039 281.2) |
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 #212237 | 15.57:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #212237 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #212237 text on white | 15.57:1 | AAA | Lc 102.5 | Preferred for body text |
| #212237 text on black | 1.34:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D6D8EA
oklch(88.6% 0.025 280.8)
-
Step 300
300
#BBBEDF
oklch(81% 0.046 281.2)
-
Step 400
400
#989CCE
oklch(70.8% 0.073 280.8)
-
Step 500
500
#7F82C2
oklch(63% 0.096 281.2)
-
Step 600
600
#696BAE
oklch(55.5% 0.103 281.2)
-
Step 700
700
#585996
oklch(49.1% 0.097 281.5)
-
Step 800
800
#484979
oklch(42.7% 0.079 281.6)
-
Step 900
900
#3C3D62
oklch(37.6% 0.063 281.7)
-
Step 950
950 (this color)
#212237
oklch(26.1% 0.039 281.2)
#212237 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 | 0.012 |
| Deuteranopia (no green cones) | #1B2336 | 0.011 |
| Tritanopia (no blue cones) | #1B262A | 0.034 |
| Achromatopsia (no color) | #242424 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212237
#212237
oklch(26.1% 0.039 281.2)
- #28250D
#28250D
oklch(26.1% 0.039 102.2)
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 #212237, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.016
- Dark #1B2431 ΔE 0.018
- Jet #212529 ΔE 0.032
- Space Cadet #2B2D42 ΔE 0.043
- Rich Black #0D1B2A ΔE 0.048
- Gunmetal #293241 ΔE 0.056
- Prussian Blue #1D3557 ΔE 0.075
- Eggplant #380835 ΔE 0.077
Use #212237 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.