#232751
Closest named color: Space Cadet (#2B2D42). oklch(29.3% 0.076 276.6), rgb(35, 39, 81).
Aa
White text reads best on this color (14.18:1).
About this color
#232751 is a dark, moderately saturated blue. In OKLCH its lightness is 29%, its chroma 0.076 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.040 away. White text reads best on it, at 14.18:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.48:1 |
| White text | 14.18:1 |
Values
| HEX | #232751 |
| RGB | rgb(35, 39, 81) |
| HSL | hsl(235, 40%, 23%) |
| OKLCH | oklch(29.3% 0.076 276.6) |
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 #232751 | 14.18:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #232751 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #232751 text on white | 14.18:1 | AAA | Lc 100.8 | Preferred for body text |
| #232751 text on black | 1.48:1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D0D7FB
oklch(88.5% 0.05 276.6)
-
Step 300
300
#B1BCFB
oklch(80.9% 0.09 276.5)
-
Step 400
400
#8A97F9
oklch(70.8% 0.143 276.4)
-
Step 500
500
#7079F5
oklch(63.1% 0.183 276.7)
-
Step 600
600
#5A5EE4
oklch(55.6% 0.199 276.5)
-
Step 700
700
#4B4CC6
oklch(49% 0.185 276.8)
-
Step 800
800
#3D40A0
oklch(42.8% 0.152 276.5)
-
Step 900
900
#33377F
oklch(37.6% 0.12 276.6)
-
Step 950
950 (this color)
#232751
oklch(29.3% 0.076 276.6)
#232751 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) | #142D53 | 0.024 |
| Deuteranopia (no green cones) | #0F2950 | 0.026 |
| Tritanopia (no blue cones) | #0F3038 | 0.066 |
| Achromatopsia (no color) | #2B2B2B | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #232751
#232751
oklch(29.3% 0.076 276.6)
- #352C00
#352C00
oklch(29.4% 0.061 97)
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 #232751, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.040
- Marine #042E60 ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.043
- Oxford Blue #1B263B ΔE 0.043
- Gunmetal #293241 ΔE 0.053
- Dark #1B2431 ΔE 0.061
- Marine Blue #01386A ΔE 0.065
- Dark Blue Grey #1F3B4D ΔE 0.067
Use #232751 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.