#232B4A
Closest named color: Space Cadet (#2B2D42). oklch(29.8% 0.057 271.6), rgb(35, 43, 74).
Aa
White text reads best on this color (13.85:1).
About this color
#232B4A is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.057 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.022 away. White text reads best on it, at 13.85:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.51:1 |
| White text | 13.85:1 |
Values
| HEX | #232B4A |
| RGB | rgb(35, 43, 74) |
| HSL | hsl(228, 36%, 21%) |
| OKLCH | oklch(29.8% 0.057 271.6) |
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 #232B4A | 13.85:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #232B4A | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #232B4A text on white | 13.85:1 | AAA | Lc 100.4 | Preferred for body text |
| #232B4A text on black | 1.51:1 | 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
#D0D8F3
oklch(88.5% 0.038 272.5)
-
Step 300
300
#B1BFED
oklch(81% 0.067 271.6)
-
Step 400
400
#889CE5
oklch(70.6% 0.11 271.7)
-
Step 500
500
#6C82DD
oklch(63.1% 0.139 271.7)
-
Step 600
600
#556ACB
oklch(55.7% 0.151 271.5)
-
Step 700
700
#4557AF
oklch(48.9% 0.141 271.6)
-
Step 800
800
#39488E
oklch(42.7% 0.117 271.6)
-
Step 900
900
#313D71
oklch(37.7% 0.09 271.7)
-
Step 950
950 (this color)
#232B4A
oklch(29.8% 0.057 271.6)
#232B4A 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) | #1F2E4B | 0.010 |
| Deuteranopia (no green cones) | #1C2B49 | 0.010 |
| Tritanopia (no blue cones) | #143137 | 0.050 |
| Achromatopsia (no color) | #2D2D2D | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #232B4A
#232B4A
oklch(29.8% 0.057 271.6)
- #382C04
#382C04
oklch(29.8% 0.057 91.3)
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 #232B4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.022
- Oxford Blue #1B263B ΔE 0.033
- Gunmetal #293241 ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.035
- Marine #042E60 ΔE 0.047
- Dark #1B2431 ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.052
- Midnight Green #073B4C ΔE 0.055
Use #232B4A 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.