#25313C
Closest named color: Gunmetal (#293241). oklch(30.7% 0.026 246.4), rgb(37, 49, 60).
Aa
White text reads best on this color (13.26:1).
About this color
#25313C is a dark close to neutral grey. In OKLCH its lightness is 31%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.011 away. White text reads best on it, at 13.26:1.
| Hue family | Neutrals |
| Lightness | dark (31%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.58:1 |
| White text | 13.26:1 |
Values
| HEX | #25313C |
| RGB | rgb(37, 49, 60) |
| HSL | hsl(209, 24%, 19%) |
| OKLCH | oklch(30.7% 0.026 246.4) |
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 #25313C | 13.26:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #25313C | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #25313C text on white | 13.26:1 | AAA | Lc 99.6 | Preferred for body text |
| #25313C text on black | 1.58:1 | 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
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#D0DAE4
oklch(88.4% 0.018 248)
-
Step 300
300
#B1C3D4
oklch(80.9% 0.031 246.7)
-
Step 400
400
#88A4BE
oklch(70.7% 0.049 246.6)
-
Step 500
500
#6A8EAD
oklch(63.2% 0.062 245)
-
Step 600
600
#527799
oklch(55.5% 0.068 247)
-
Step 700
700
#426483
oklch(49% 0.064 247)
-
Step 800
800
#37526A
oklch(42.7% 0.052 246.2)
-
Step 900
900
#304456
oklch(37.8% 0.04 246.3)
-
Step 950
950 (this color)
#25313C
oklch(30.7% 0.026 246.4)
#25313C 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) | #2D313D | 0.013 |
| Deuteranopia (no green cones) | #2A2F3C | 0.010 |
| Tritanopia (no blue cones) | #1E3435 | 0.021 |
| Achromatopsia (no color) | #303030 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25313C
#25313C
oklch(30.7% 0.026 246.4)
- #392D22
#392D22
oklch(30.7% 0.026 64.1)
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 #25313C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.011
- Space Cadet #2B2D42 ΔE 0.022
- Dark Blue Grey #1F3B4D ΔE 0.038
- Onyx #343A40 ΔE 0.040
- Midnight Green #073B4C ΔE 0.042
- Oxford Blue #1B263B ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.048
- Jet #212529 ΔE 0.048
Use #25313C 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.