#25212D
Closest named color: Dark (#1B2431). oklch(25.8% 0.023 300), rgb(37, 33, 45).
Aa
White text reads best on this color (15.74:1).
About this color
#25212D is a dark close to neutral grey. In OKLCH its lightness is 26%, its chroma 0.023. 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 15.74:1.
| Hue family | Neutrals |
| Lightness | dark (26%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.33:1 |
| White text | 15.74:1 |
Values
| HEX | #25212D |
| RGB | rgb(37, 33, 45) |
| HSL | hsl(260, 15%, 15%) |
| OKLCH | oklch(25.8% 0.023 300) |
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 #25212D | 15.74:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #25212D | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #25212D text on white | 15.74:1 | AAA | Lc 102.7 | Preferred for body text |
| #25212D text on black | 1.33:1 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EAE9EE
oklch(93.6% 0.007 295.4)
-
Step 200
200
#DAD7E2
oklch(88.5% 0.015 298.5)
-
Step 300
300
#C3BDD0
oklch(80.9% 0.027 300.2)
-
Step 400
400
#A49BB8
oklch(70.7% 0.043 299.5)
-
Step 500
500
#8E82A7
oklch(63% 0.056 299.6)
-
Step 600
600
#796B92
oklch(55.6% 0.062 300.9)
-
Step 700
700
#655A7C
oklch(49.1% 0.055 299.2)
-
Step 800
800
#534965
oklch(42.7% 0.047 300.8)
-
Step 900
900
#443D52
oklch(37.6% 0.036 299.9)
-
Step 950
950 (this color)
#25212D
oklch(25.8% 0.023 300)
#25212D 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) | #1F232E | 0.012 |
| Deuteranopia (no green cones) | #1F232D | 0.012 |
| Tritanopia (no blue cones) | #242325 | 0.019 |
| Achromatopsia (no color) | #232323 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25212D
#25212D
oklch(25.8% 0.023 300)
- #222519
#222519
oklch(25.7% 0.022 119.4)
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 #25212D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.019
- Jet #212529 ΔE 0.019
- Oxford Blue #1B263B ΔE 0.030
- Rich Black #0D1B2A ΔE 0.048
- Space Cadet #2B2D42 ΔE 0.051
- Gunmetal #293241 ΔE 0.061
- Dark Brown #341C02 ΔE 0.070
- Eggplant #380835 ΔE 0.077
Use #25212D 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.