#222437
Closest named color: Oxford Blue (#1B263B). oklch(26.8% 0.035 279.1), rgb(34, 36, 55).
Aa
White text reads best on this color (15.26:1).
About this color
#222437 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.035 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.013 away. White text reads best on it, at 15.26:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.37:1 |
| White text | 15.26:1 |
Values
| HEX | #222437 |
| RGB | rgb(34, 36, 55) |
| HSL | hsl(234, 24%, 17%) |
| OKLCH | oklch(26.8% 0.035 279.1) |
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 #222437 | 15.26:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #222437 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #222437 text on white | 15.26:1 | AAA | Lc 102.2 | Preferred for body text |
| #222437 text on black | 1.37:1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D5D8E9
oklch(88.5% 0.023 277.9)
-
Step 300
300
#BABEDC
oklch(80.8% 0.042 279.4)
-
Step 400
400
#979DCB
oklch(70.8% 0.067 278.7)
-
Step 500
500
#7E84BD
oklch(63.1% 0.086 279)
-
Step 600
600
#686DA9
oklch(55.6% 0.093 279.3)
-
Step 700
700
#565B91
oklch(49.1% 0.086 278.7)
-
Step 800
800
#474A76
oklch(42.7% 0.073 279.9)
-
Step 900
900
#3B3E5F
oklch(37.6% 0.056 279.3)
-
Step 950
950 (this color)
#222437
oklch(26.8% 0.035 279.1)
#222437 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) | #1E2638 | 0.009 |
| Deuteranopia (no green cones) | #1D2537 | 0.009 |
| Tritanopia (no blue cones) | #1C282B | 0.032 |
| Achromatopsia (no color) | #252525 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #222437
#222437
oklch(26.8% 0.035 279.1)
- #2A2611
#2A2611
oklch(26.7% 0.035 98.8)
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 #222437, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.013
- Dark #1B2431 ΔE 0.017
- Jet #212529 ΔE 0.028
- Space Cadet #2B2D42 ΔE 0.037
- Gunmetal #293241 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.071
- Dark Blue Grey #1F3B4D ΔE 0.077
Use #222437 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.