#022137
Closest named color: Rich Black (#0D1B2A). oklch(23.9% 0.056 243.8), rgb(2, 33, 55).
Aa
White text reads best on this color (16.46:1).
About this color
#022137 is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.056 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.029 away. White text reads best on it, at 16.46:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.27:1 |
| White text | 16.46:1 |
Values
| HEX | #022137 |
| RGB | rgb(2, 33, 55) |
| HSL | hsl(205, 93%, 11%) |
| OKLCH | oklch(23.9% 0.056 243.8) |
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 #022137 | 16.46:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #022137 | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #022137 text on white | 16.46:1 | AAA | Lc 103.2 | Preferred for body text |
| #022137 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF6
oklch(93.7% 0.019 243)
-
Step 200
200
#C5DCF0
oklch(88.4% 0.037 244.4)
-
Step 300
300
#9DC6E9
oklch(80.9% 0.066 244.5)
-
Step 400
400
#63A8DD
oklch(70.7% 0.105 243.2)
-
Step 500
500
#2F91D4
oklch(63.2% 0.134 243.4)
-
Step 600
600
#0079BC
oklch(55.5% 0.136 243.9)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#08456C
oklch(37.6% 0.088 244)
-
Step 950
950 (this color)
#022137
oklch(23.9% 0.056 243.8)
#022137 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) | #162238 | 0.024 |
| Deuteranopia (no green cones) | #0F1D37 | 0.018 |
| Tritanopia (no blue cones) | #002629 | 0.037 |
| Achromatopsia (no color) | #1F1F1F | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #022137
#022137
oklch(23.9% 0.056 243.8)
- #301800
#301800
oklch(23.8% 0.054 63.5)
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 #022137, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.029
- Dark #1B2431 ΔE 0.035
- Oxford Blue #1B263B ΔE 0.037
- Jet #212529 ΔE 0.052
- Navy Blue #001146 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.074
- Rich Navy #001219 ΔE 0.075
- Gunmetal #293241 ΔE 0.082
Use #022137 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.