#022231
Closest named color: Rich Black (#0D1B2A). oklch(23.7% 0.047 233.1), rgb(2, 34, 49).
Aa
White text reads best on this color (16.46:1).
About this color
#022231 is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.047 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.026 away. White text reads best on it, at 16.46:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.27:1 |
| White text | 16.46:1 |
Values
| HEX | #022231 |
| RGB | rgb(2, 34, 49) |
| HSL | hsl(199, 92%, 10%) |
| OKLCH | oklch(23.7% 0.047 233.1) |
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 #022231 | 16.46:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #022231 | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #022231 text on white | 16.46:1 | AAA | Lc 103.2 | Preferred for body text |
| #022231 text on black | 1.27:1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C6DDEA
oklch(88.4% 0.03 232.5)
-
Step 300
300
#9EC7DF
oklch(80.8% 0.055 234)
-
Step 400
400
#65AACF
oklch(70.7% 0.088 233.4)
-
Step 500
500
#3194C2
oklch(63% 0.112 233.1)
-
Step 600
600
#007DAB
oklch(55.5% 0.115 233.2)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#094862
oklch(37.8% 0.073 232.3)
-
Step 950
950 (this color)
#022231
oklch(23.7% 0.047 233.1)
#022231 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) | #1A2232 | 0.029 |
| Deuteranopia (no green cones) | #141D31 | 0.025 |
| Tritanopia (no blue cones) | #002627 | 0.028 |
| Achromatopsia (no color) | #1F1F1F | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #022231
#022231
oklch(23.7% 0.047 233.1)
- #301807
#301807
oklch(23.9% 0.047 53.9)
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 #022231, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.026
- Dark #1B2431 ΔE 0.032
- Oxford Blue #1B263B ΔE 0.039
- Jet #212529 ΔE 0.045
- Rich Navy #001219 ΔE 0.070
- Navy Blue #001146 ΔE 0.071
- Space Cadet #2B2D42 ΔE 0.076
- Gunmetal #293241 ΔE 0.082
Use #022231 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.