#20243D
Closest named color: Oxford Blue (#1B263B). oklch(26.9% 0.047 275.9), rgb(32, 36, 61).
Aa
White text reads best on this color (15.20:1).
About this color
#20243D is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.047 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.011 away. White text reads best on it, at 15.20:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.38:1 |
| White text | 15.20:1 |
Values
| HEX | #20243D |
| RGB | rgb(32, 36, 61) |
| HSL | hsl(232, 31%, 18%) |
| OKLCH | oklch(26.9% 0.047 275.9) |
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 #20243D | 15.20:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #20243D | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #20243D text on white | 15.20:1 | AAA | Lc 102.1 | Preferred for body text |
| #20243D text on black | 1.38:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D3D8EE
oklch(88.5% 0.031 275.6)
-
Step 300
300
#B6BEE5
oklch(80.8% 0.056 276)
-
Step 400
400
#919CD8
oklch(70.7% 0.089 275.9)
-
Step 500
500
#7783CE
oklch(63.2% 0.114 275.8)
-
Step 600
600
#606BBA
oklch(55.6% 0.123 275.7)
-
Step 700
700
#5059A1
oklch(49.2% 0.115 276)
-
Step 800
800
#414982
oklch(42.7% 0.095 275.6)
-
Step 900
900
#373D68
oklch(37.6% 0.074 276.2)
-
Step 950
950 (this color)
#20243D
oklch(26.9% 0.047 275.9)
#20243D 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) | #1B273E | 0.012 |
| Deuteranopia (no green cones) | #19253C | 0.011 |
| Tritanopia (no blue cones) | #17292D | 0.042 |
| Achromatopsia (no color) | #262626 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #20243D
#20243D
oklch(26.9% 0.047 275.9)
- #2D2607
#2D2607
oklch(26.9% 0.047 96.3)
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 #20243D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.011
- Dark #1B2431 ΔE 0.025
- Space Cadet #2B2D42 ΔE 0.037
- Jet #212529 ΔE 0.039
- Gunmetal #293241 ΔE 0.050
- Rich Black #0D1B2A ΔE 0.056
- Prussian Blue #1D3557 ΔE 0.065
- Marine #042E60 ΔE 0.069
Use #20243D 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.