#22233B
Closest named color: Oxford Blue (#1B263B). oklch(26.7% 0.044 281.1), rgb(34, 35, 59).
Aa
White text reads best on this color (15.31:1).
About this color
#22233B is a dark, muted purple. In OKLCH its lightness is 27%, its chroma 0.044 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.014 away. White text reads best on it, at 15.31:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.37:1 |
| White text | 15.31:1 |
Values
| HEX | #22233B |
| RGB | rgb(34, 35, 59) |
| HSL | hsl(238, 27%, 18%) |
| OKLCH | oklch(26.7% 0.044 281.1) |
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 #22233B | 15.31:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #22233B | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #22233B text on white | 15.31:1 | AAA | Lc 102.2 | Preferred for body text |
| #22233B 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D5D7ED
oklch(88.4% 0.03 281.6)
-
Step 300
300
#BABDE3
oklch(80.9% 0.054 281.6)
-
Step 400
400
#979BD4
oklch(70.7% 0.083 280.9)
-
Step 500
500
#7E81C9
oklch(63.1% 0.108 281)
-
Step 600
600
#6869B6
oklch(55.5% 0.118 281.3)
-
Step 700
700
#57589D
oklch(49.2% 0.109 281)
-
Step 800
800
#47487F
oklch(42.8% 0.09 281.1)
-
Step 900
900
#3B3D66
oklch(37.8% 0.07 280.4)
-
Step 950
950 (this color)
#22233B
oklch(26.7% 0.044 281.1)
#22233B 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) | #1B263C | 0.014 |
| Deuteranopia (no green cones) | #1A243A | 0.013 |
| Tritanopia (no blue cones) | #1B282C | 0.039 |
| Achromatopsia (no color) | #252525 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #22233B
#22233B
oklch(26.7% 0.044 281.1)
- #2A260A
#2A260A
oklch(26.6% 0.044 101.2)
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 #22233B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.014
- Dark #1B2431 ΔE 0.024
- Jet #212529 ΔE 0.037
- Space Cadet #2B2D42 ΔE 0.038
- Gunmetal #293241 ΔE 0.052
- Rich Black #0D1B2A ΔE 0.055
- Prussian Blue #1D3557 ΔE 0.068
- Marine #042E60 ΔE 0.073
Use #22233B 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.