#022537
Closest named color: Dark (#1B2431). oklch(25% 0.052 236.1), rgb(2, 37, 55).
Aa
White text reads best on this color (15.88:1).
About this color
#022537 is a dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.052 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.029 away. White text reads best on it, at 15.88:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.32:1 |
| White text | 15.88:1 |
Values
| HEX | #022537 |
| RGB | rgb(2, 37, 55) |
| HSL | hsl(200, 93%, 11%) |
| OKLCH | oklch(25% 0.052 236.1) |
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 #022537 | 15.88:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #022537 | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #022537 text on white | 15.88:1 | AAA | Lc 102.6 | Preferred for body text |
| #022537 text on black | 1.32:1 | 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
#DFECF4
oklch(93.6% 0.018 234.5)
-
Step 200
200
#C5DDED
oklch(88.5% 0.034 237)
-
Step 300
300
#9BC7E3
oklch(80.8% 0.061 236.4)
-
Step 400
400
#60AAD5
oklch(70.7% 0.097 235.9)
-
Step 500
500
#2494CA
oklch(63.1% 0.124 235.6)
-
Step 600
600
#007CB0
oklch(55.5% 0.121 236.7)
-
Step 700
700
#006994
oklch(49.2% 0.105 235.5)
-
Step 800
800
#00567A
oklch(42.8% 0.091 235.4)
-
Step 900
900
#004767
oklch(37.7% 0.082 236.6)
-
Step 950
950 (this color)
#022537
oklch(25% 0.052 236.1)
#022537 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) | #1C2538 | 0.030 |
| Deuteranopia (no green cones) | #152037 | 0.024 |
| Tritanopia (no blue cones) | #002A2B | 0.034 |
| Achromatopsia (no color) | #222222 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #022537
#022537
oklch(25% 0.052 236.1)
- #341A06
#341A06
oklch(25% 0.052 55.4)
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 #022537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.029
- Oxford Blue #1B263B ΔE 0.030
- Rich Black #0D1B2A ΔE 0.038
- Jet #212529 ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.065
- Gunmetal #293241 ΔE 0.070
- Navy Blue #001146 ΔE 0.073
- Marine #042E60 ΔE 0.078
Use #022537 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.