#252F33
Closest named color: Gunmetal (#293241). oklch(29.7% 0.016 224.1), rgb(37, 47, 51).
Aa
White text reads best on this color (13.69:1).
About this color
#252F33 is a dark close to neutral grey. In OKLCH its lightness is 30%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.027 away. White text reads best on it, at 13.69:1.
| Hue family | Neutrals |
| Lightness | dark (30%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.53:1 |
| White text | 13.69:1 |
Values
| HEX | #252F33 |
| RGB | rgb(37, 47, 51) |
| HSL | hsl(197, 16%, 17%) |
| OKLCH | oklch(29.7% 0.016 224.1) |
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 #252F33 | 13.69:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #252F33 | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #252F33 text on white | 13.69:1 | AAA | Lc 100.2 | Preferred for body text |
| #252F33 text on black | 1.53:1 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDE
oklch(88.5% 0.011 219.6)
-
Step 300
300
#B5C3C9
oklch(80.8% 0.018 225.2)
-
Step 400
400
#8EA5AE
oklch(70.7% 0.029 223.4)
-
Step 500
500
#718F9B
oklch(63.1% 0.038 224.2)
-
Step 600
600
#597985
oklch(55.6% 0.041 223)
-
Step 700
700
#496671
oklch(49.2% 0.038 223.4)
-
Step 800
800
#3C535C
oklch(42.7% 0.032 224)
-
Step 900
900
#34454B
oklch(37.8% 0.024 221.5)
-
Step 950
950 (this color)
#252F33
oklch(29.7% 0.016 224.1)
#252F33 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) | #2D2E33 | 0.013 |
| Deuteranopia (no green cones) | #2B2D33 | 0.011 |
| Tritanopia (no blue cones) | #213030 | 0.010 |
| Achromatopsia (no color) | #2D2D2D | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #252F33
#252F33
oklch(29.7% 0.016 224.1)
- #342B27
#342B27
oklch(29.8% 0.015 45.4)
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 #252F33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.027
- Space Cadet #2B2D42 ΔE 0.033
- Jet #212529 ΔE 0.036
- Oxford Blue #1B263B ΔE 0.043
- Dark #1B2431 ΔE 0.043
- Onyx #343A40 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.052
- Midnight Green #073B4C ΔE 0.054
Use #252F33 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.