#232A38
Closest named color: Oxford Blue (#1B263B). oklch(28.5% 0.028 264), rgb(35, 42, 56).
Aa
White text reads best on this color (14.38:1).
About this color
#232A38 is a dark close to neutral grey. In OKLCH its lightness is 28%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Oxford Blue (#1B263B), ΔE 0.021 away. White text reads best on it, at 14.38:1.
| Hue family | Neutrals |
| Lightness | dark (28%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.45:1 |
| White text | 14.38:1 |
Values
| HEX | #232A38 |
| RGB | rgb(35, 42, 56) |
| HSL | hsl(220, 23%, 18%) |
| OKLCH | oklch(28.5% 0.028 264) |
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 #232A38 | 14.38:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #232A38 | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #232A38 text on white | 14.38:1 | AAA | Lc 101.1 | Preferred for body text |
| #232A38 text on black | 1.45:1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B6C1D7
oklch(80.9% 0.033 264.4)
-
Step 400
400
#90A1C2
oklch(70.7% 0.052 263.6)
-
Step 500
500
#7589B3
oklch(63% 0.068 264.8)
-
Step 600
600
#5D739F
oklch(55.6% 0.074 263.7)
-
Step 700
700
#4D6088
oklch(49.1% 0.069 264.5)
-
Step 800
800
#3F4F6E
oklch(42.8% 0.056 263.2)
-
Step 900
900
#364159
oklch(37.6% 0.044 265.3)
-
Step 950
950 (this color)
#232A38
oklch(28.5% 0.028 264)
#232A38 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) | #252B39 | 0.005 |
| Deuteranopia (no green cones) | #232938 | 0.003 |
| Tritanopia (no blue cones) | #1D2D2F | 0.025 |
| Achromatopsia (no color) | #2A2A2A | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #232A38
#232A38
oklch(28.5% 0.028 264)
- #31291A
#31291A
oklch(28.5% 0.028 82.8)
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 #232A38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.021
- Space Cadet #2B2D42 ΔE 0.024
- Dark #1B2431 ΔE 0.027
- Jet #212529 ΔE 0.029
- Gunmetal #293241 ΔE 0.031
- Prussian Blue #1D3557 ΔE 0.059
- Dark Blue Grey #1F3B4D ΔE 0.059
- Midnight Green #073B4C ΔE 0.060
Use #232A38 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.