#232B4C
Closest named color: Space Cadet (#2B2D42). oklch(29.9% 0.061 272), rgb(35, 43, 76).
Aa
White text reads best on this color (13.80:1).
About this color
#232B4C is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.061 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.025 away. White text reads best on it, at 13.80:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.52:1 |
| White text | 13.80:1 |
Values
| HEX | #232B4C |
| RGB | rgb(35, 43, 76) |
| HSL | hsl(228, 37%, 22%) |
| OKLCH | oklch(29.9% 0.061 272) |
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 #232B4C | 13.80:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #232B4C | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #232B4C text on white | 13.80:1 | AAA | Lc 100.3 | Preferred for body text |
| #232B4C text on black | 1.52:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#CFD8F4
oklch(88.4% 0.04 271.4)
-
Step 300
300
#B0BEF0
oklch(80.8% 0.073 272.5)
-
Step 400
400
#879CE9
oklch(70.8% 0.115 271.6)
-
Step 500
500
#6B81E2
oklch(63.1% 0.148 271.9)
-
Step 600
600
#5468D0
oklch(55.6% 0.161 272)
-
Step 700
700
#4556B4
oklch(49.1% 0.149 272.1)
-
Step 800
800
#394792
oklch(42.8% 0.124 272.2)
-
Step 900
900
#303C74
oklch(37.6% 0.096 271.9)
-
Step 950
950 (this color)
#232B4C
oklch(29.9% 0.061 272)
#232B4C 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) | #1E2F4D | 0.014 |
| Deuteranopia (no green cones) | #1A2B4B | 0.013 |
| Tritanopia (no blue cones) | #133237 | 0.055 |
| Achromatopsia (no color) | #2D2D2D | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #232B4C
#232B4C
oklch(29.9% 0.061 272)
- #392C00
#392C00
oklch(29.9% 0.061 91.2)
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 #232B4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.025
- Prussian Blue #1D3557 ΔE 0.034
- Gunmetal #293241 ΔE 0.036
- Oxford Blue #1B263B ΔE 0.036
- Marine #042E60 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.052
- Dark #1B2431 ΔE 0.054
- Midnight Green #073B4C ΔE 0.056
Use #232B4C 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.