#222837
Closest named color: Oxford Blue (#1B263B). oklch(27.8% 0.029 267.6), rgb(34, 40, 55).
Aa
White text reads best on this color (14.71:1).
About this color
#222837 is a dark close to neutral grey. In OKLCH its lightness is 28%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Oxford Blue (#1B263B), ΔE 0.016 away. White text reads best on it, at 14.71:1.
| Hue family | Neutrals |
| Lightness | dark (28%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.42:1 |
| White text | 14.71:1 |
Values
| HEX | #222837 |
| RGB | rgb(34, 40, 55) |
| HSL | hsl(223, 24%, 17%) |
| OKLCH | oklch(27.8% 0.029 267.6) |
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 #222837 | 14.71:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #222837 | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #222837 text on white | 14.71:1 | AAA | Lc 101.5 | Preferred for body text |
| #222837 text on black | 1.42:1 | 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
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B7C0D8
oklch(80.8% 0.035 269.2)
-
Step 400
400
#91A0C4
oklch(70.7% 0.056 267.2)
-
Step 500
500
#7788B5
oklch(63% 0.071 268.3)
-
Step 600
600
#5F72A1
oklch(55.6% 0.077 267)
-
Step 700
700
#4F5F8A
oklch(49.1% 0.072 268.1)
-
Step 800
800
#414E70
oklch(42.8% 0.059 267.8)
-
Step 900
900
#37415A
oklch(37.7% 0.045 267.4)
-
Step 950
950 (this color)
#222837
oklch(27.8% 0.029 267.6)
#222837 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 | 0.004 |
| Deuteranopia (no green cones) | #212737 | 0.004 |
| Tritanopia (no blue cones) | #1C2B2D | 0.026 |
| Achromatopsia (no color) | #282828 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #222837
#222837
oklch(27.8% 0.029 267.6)
- #2E2817
#2E2817
oklch(27.8% 0.03 90.8)
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 #222837, 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 0.021
- Jet #212529 ΔE 0.026
- Space Cadet #2B2D42 ΔE 0.029
- Gunmetal #293241 ΔE 0.038
- Rich Black #0D1B2A ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.063
- Dark Blue Grey #1F3B4D ΔE 0.066
Use #222837 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.