#232B43
Closest named color: Space Cadet (#2B2D42). oklch(29.3% 0.045 269.4), rgb(35, 43, 67).
Aa
White text reads best on this color (14.01:1).
About this color
#232B43 is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.045 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.016 away. White text reads best on it, at 14.01:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.49:1 |
| White text | 14.01:1 |
Values
| HEX | #232B43 |
| RGB | rgb(35, 43, 67) |
| HSL | hsl(225, 31%, 20%) |
| OKLCH | oklch(29.3% 0.045 269.4) |
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 #232B43 | 14.01:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #232B43 | 1.49:1 | Fails | Lc 0.0 | Not readable |
| #232B43 text on white | 14.01:1 | AAA | Lc 100.6 | Preferred for body text |
| #232B43 text on black | 1.49:1 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D1D9EE
oklch(88.6% 0.03 269.1)
-
Step 300
300
#B2C0E4
oklch(80.9% 0.053 268.5)
-
Step 400
400
#8B9ED7
oklch(70.6% 0.087 269.9)
-
Step 500
500
#6F86CC
oklch(63.2% 0.109 269.3)
-
Step 600
600
#576EB9
oklch(55.5% 0.12 269.4)
-
Step 700
700
#485C9F
oklch(49.1% 0.11 269.5)
-
Step 800
800
#3B4B81
oklch(42.6% 0.092 269.7)
-
Step 900
900
#323F68
oklch(37.7% 0.072 269.4)
-
Step 950
950 (this color)
#232B43
oklch(29.3% 0.045 269.4)
#232B43 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) | #232D44 | 0.006 |
| Deuteranopia (no green cones) | #202A42 | 0.006 |
| Tritanopia (no blue cones) | #183034 | 0.040 |
| Achromatopsia (no color) | #2C2C2C | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #232B43
#232B43
oklch(29.3% 0.045 269.4)
- #352B0F
#352B0F
oklch(29.3% 0.045 89.7)
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 #232B43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.016
- Oxford Blue #1B263B ΔE 0.025
- Gunmetal #293241 ΔE 0.028
- Dark #1B2431 ΔE 0.040
- Prussian Blue #1D3557 ΔE 0.043
- Jet #212529 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.052
- Midnight Green #073B4C ΔE 0.054
Use #232B43 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.