#253E33
Closest named color: Onyx (#343A40). oklch(34% 0.037 164.8), rgb(37, 62, 51).
Aa
White text reads best on this color (11.56:1).
About this color
#253E33 is a dark, muted green. In OKLCH its lightness is 34%, its chroma 0.037 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.038 away. White text reads best on it, at 11.56:1.
| Hue family | Greens |
| Lightness | dark (34%) |
| Chroma | muted (0.037) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.81:1 |
| White text | 11.56:1 |
Values
| HEX | #253E33 |
| RGB | rgb(37, 62, 51) |
| HSL | hsl(154, 25%, 19%) |
| OKLCH | oklch(34% 0.037 164.8) |
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 #253E33 | 11.56:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #253E33 | 1.81:1 | Fails | Lc 7.3 | Not readable |
| #253E33 text on white | 11.56:1 | AAA | Lc 96.6 | Preferred for body text |
| #253E33 text on black | 1.81:1 | 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 900.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE8
oklch(93.7% 0.009 161.3)
-
Step 200
200
#D0DCD6
oklch(88.4% 0.015 164.7)
-
Step 300
300
#B1C7BC
oklch(81% 0.028 164.2)
-
Step 400
400
#88AA9A
oklch(70.8% 0.044 164.9)
-
Step 500
500
#699581
oklch(63.2% 0.057 164.8)
-
Step 600
600
#507F6A
oklch(55.6% 0.061 164.4)
-
Step 700
700
#406B59
oklch(49.1% 0.056 165.7)
-
Step 800
800
#355748
oklch(42.6% 0.047 164.7)
-
Step 900
900 (this color)
#253E33
oklch(34% 0.037 164.8)
-
Step 950
950
#1C2A24
oklch(27% 0.022 166.4)
#253E33 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) | #3D3B32 | 0.036 |
| Deuteranopia (no green cones) | #393834 | 0.035 |
| Tritanopia (no blue cones) | #1F3E3B | 0.015 |
| Achromatopsia (no color) | #393939 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #253E33
#253E33
oklch(34% 0.037 164.8)
- #46303C
#46303C
oklch(33.9% 0.037 345.4)
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 #253E33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.038
- Pakistan Green #283618 ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.045
- Evergreen #05472A ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.051
- Midnight Green #073B4C ΔE 0.053
- Charcoal #264653 ΔE 0.055
- Gunmetal #293241 ΔE 0.055
Use #253E33 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.