#252534
Closest named color: Dark (#1B2431). oklch(27.1% 0.028 284.4), rgb(37, 37, 52).
Aa
White text reads best on this color (15.07:1).
About this color
#252534 is a dark close to neutral grey. In OKLCH its lightness is 27%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.019 away. White text reads best on it, at 15.07:1.
| Hue family | Neutrals |
| Lightness | dark (27%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.39:1 |
| White text | 15.07:1 |
Values
| HEX | #252534 |
| RGB | rgb(37, 37, 52) |
| HSL | hsl(240, 17%, 17%) |
| OKLCH | oklch(27.1% 0.028 284.4) |
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 #252534 | 15.07:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #252534 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #252534 text on white | 15.07:1 | AAA | Lc 102.0 | Preferred for body text |
| #252534 text on black | 1.39:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9F0
oklch(93.6% 0.009 286.2)
-
Step 200
200
#D7D8E5
oklch(88.5% 0.018 282.5)
-
Step 300
300
#BEBED6
oklch(80.9% 0.034 285.6)
-
Step 400
400
#9C9DC1
oklch(70.8% 0.052 283.7)
-
Step 500
500
#8484B1
oklch(63% 0.067 284.3)
-
Step 600
600
#6E6D9D
oklch(55.5% 0.074 284.7)
-
Step 700
700
#5C5B86
oklch(49% 0.068 284.6)
-
Step 800
800
#4B4B6D
oklch(42.7% 0.056 283.8)
-
Step 900
900
#3F3E58
oklch(37.6% 0.044 285.8)
-
Step 950
950 (this color)
#252534
oklch(27.1% 0.028 284.4)
#252534 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) | #212735 | 0.009 |
| Deuteranopia (no green cones) | #212634 | 0.007 |
| Tritanopia (no blue cones) | #22282A | 0.025 |
| Achromatopsia (no color) | #262626 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #252534
#252534
oklch(27.1% 0.028 284.4)
- #292817
#292817
oklch(27.3% 0.029 105.3)
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 #252534, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.019
- Oxford Blue #1B263B ΔE 0.020
- Jet #212529 ΔE 0.023
- Space Cadet #2B2D42 ΔE 0.035
- Gunmetal #293241 ΔE 0.046
- Rich Black #0D1B2A ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.072
- Dark Blue Grey #1F3B4D ΔE 0.075
Use #252534 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.