#25636E
Closest named color: Petrol (#005F6A). oklch(46.5% 0.065 211.2), rgb(37, 99, 110).
Aa
White text reads best on this color (6.79:1).
About this color
#25636E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.065 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.024 away. White text reads best on it, at 6.79:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 3.08:1 |
| White text | 6.79:1 |
Values
| HEX | #25636E |
| RGB | rgb(37, 99, 110) |
| HSL | hsl(189, 50%, 29%) |
| OKLCH | oklch(46.5% 0.065 211.2) |
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 #25636E | 6.79:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #25636E | 3.08:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #25636E text on white | 6.79:1 | AA | Lc 83.2 | Fine for body text |
| #25636E text on black | 3.08:1 | AA large text | Lc -18.7 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CDDCE0
oklch(88.4% 0.017 215.5)
-
Step 300
300
#AAC6CC
oklch(80.8% 0.031 212.1)
-
Step 400
400
#7CA9B2
oklch(70.6% 0.05 211.3)
-
Step 500
500
#5994A0
oklch(63.1% 0.064 212)
-
Step 600
600
#3C7E8B
oklch(55.5% 0.07 212.2)
-
Step 700
700 (this color)
#25636E
oklch(46.5% 0.065 211.2)
-
Step 800
800
#275760
oklch(42.7% 0.054 211.5)
-
Step 900
900
#25484E
oklch(37.8% 0.042 209.8)
-
Step 950
950
#162A2E
oklch(27% 0.027 211.7)
#25636E 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) | #5A5F6F | 0.061 |
| Deuteranopia (no green cones) | #4F586E | 0.054 |
| Tritanopia (no blue cones) | #006866 | 0.028 |
| Achromatopsia (no color) | #5B5B5B | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25636E
#25636E
oklch(46.5% 0.065 211.2)
- #794B43
#794B43
oklch(46.3% 0.065 30.4)
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 #25636E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.024
- Dark Aqua #05696B ΔE 0.024
- Dark Green Blue #1F6357 ΔE 0.039
- YInMn Blue #415A77 ΔE 0.044
- Deep Turquoise #017374 ΔE 0.048
- Slate #516572 ΔE 0.049
- Dark Aquamarine #017371 ΔE 0.049
- Denim #3B638C ΔE 0.056
Use #25636E 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.