#02203D
Closest named color: Rich Black (#0D1B2A). oklch(24% 0.066 250.9), rgb(2, 32, 61).
Aa
White text reads best on this color (16.45:1).
About this color
#02203D is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.066 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.038 away. White text reads best on it, at 16.45:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.27:1 |
| White text | 16.45:1 |
Values
| HEX | #02203D |
| RGB | rgb(2, 32, 61) |
| HSL | hsl(209, 94%, 12%) |
| OKLCH | oklch(24% 0.066 250.9) |
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 #02203D | 16.45:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #02203D | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #02203D text on white | 16.45:1 | AAA | Lc 103.1 | Preferred for body text |
| #02203D 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFEBF9
oklch(93.5% 0.023 252.2)
-
Step 200
200
#C5DCF5
oklch(88.5% 0.042 250.5)
-
Step 300
300
#9BC5F2
oklch(80.9% 0.078 250.5)
-
Step 400
400
#61A5EB
oklch(70.6% 0.124 250.6)
-
Step 500
500
#2D8CE5
oklch(63% 0.159 251)
-
Step 600
600
#0075CD
oklch(55.6% 0.161 250.9)
-
Step 700
700
#0062AD
oklch(49.1% 0.142 250.8)
-
Step 800
800
#00508F
oklch(42.6% 0.123 250.8)
-
Step 900
900
#074376
oklch(37.7% 0.104 250.7)
-
Step 950
950 (this color)
#02203D
oklch(24% 0.066 250.9)
#02203D 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) | #11223E | 0.018 |
| Deuteranopia (no green cones) | #071D3C | 0.010 |
| Tritanopia (no blue cones) | #00272B | 0.048 |
| Achromatopsia (no color) | #1F1F1F | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #02203D
#02203D
oklch(24% 0.066 250.9)
- #2E1A00
#2E1A00
oklch(23.9% 0.051 70.9)
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 #02203D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.038
- Oxford Blue #1B263B ΔE 0.039
- Dark #1B2431 ΔE 0.042
- Navy Blue #001146 ΔE 0.050
- Jet #212529 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.075
- Marine #042E60 ΔE 0.075
- Dark Indigo #1F0954 ΔE 0.078
Use #02203D 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.