#232F3B
Closest named color: Gunmetal (#293241). oklch(30% 0.027 248.8), rgb(35, 47, 59).
Aa
White text reads best on this color (13.62:1).
About this color
#232F3B is a dark close to neutral grey. In OKLCH its lightness is 30%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.017 away. White text reads best on it, at 13.62:1.
| Hue family | Neutrals |
| Lightness | dark (30%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.54:1 |
| White text | 13.62:1 |
Values
| HEX | #232F3B |
| RGB | rgb(35, 47, 59) |
| HSL | hsl(210, 26%, 18%) |
| OKLCH | oklch(30% 0.027 248.8) |
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 #232F3B | 13.62:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #232F3B | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #232F3B text on white | 13.62:1 | AAA | Lc 100.1 | Preferred for body text |
| #232F3B text on black | 1.54:1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D0DAE5
oklch(88.4% 0.019 250.6)
-
Step 300
300
#B1C3D5
oklch(80.9% 0.032 248.2)
-
Step 400
400
#88A4C0
oklch(70.7% 0.052 248.6)
-
Step 500
500
#6A8DB0
oklch(63.1% 0.066 248.9)
-
Step 600
600
#51779C
oklch(55.6% 0.072 248.6)
-
Step 700
700
#426485
oklch(49.1% 0.066 248.6)
-
Step 800
800
#36526C
oklch(42.8% 0.055 247.4)
-
Step 900
900
#2F4458
oklch(37.8% 0.043 247.8)
-
Step 950
950 (this color)
#232F3B
oklch(30% 0.027 248.8)
#232F3B 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) | #2A2F3C | 0.011 |
| Deuteranopia (no green cones) | #272D3B | 0.009 |
| Tritanopia (no blue cones) | #1B3233 | 0.024 |
| Achromatopsia (no color) | #2E2E2E | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #232F3B
#232F3B
oklch(30% 0.027 248.8)
- #372B1F
#372B1F
oklch(29.9% 0.027 66.5)
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 #232F3B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.017
- Space Cadet #2B2D42 ΔE 0.021
- Oxford Blue #1B263B ΔE 0.035
- Jet #212529 ΔE 0.042
- Dark #1B2431 ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.044
- Midnight Green #073B4C ΔE 0.046
- Onyx #343A40 ΔE 0.048
Use #232F3B 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.