#25515F
Closest named color: Deep Teal (#00555A). oklch(41% 0.054 221.3), rgb(37, 81, 95).
Aa
White text reads best on this color (8.67:1).
About this color
#25515F is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.054 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.026 away. White text reads best on it, at 8.67:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.42:1 |
| White text | 8.67:1 |
Values
| HEX | #25515F |
| RGB | rgb(37, 81, 95) |
| HSL | hsl(194, 44%, 26%) |
| OKLCH | oklch(41% 0.054 221.3) |
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 #25515F | 8.67:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #25515F | 2.42:1 | Fails | Lc 14.4 | Not readable |
| #25515F text on white | 8.67:1 | AAA | Lc 89.6 | Fine for body text |
| #25515F text on black | 2.42:1 | Fails | Lc -12.6 | 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 800.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CDDCE1
oklch(88.5% 0.018 219.7)
-
Step 300
300
#ABC6CF
oklch(80.9% 0.032 219.9)
-
Step 400
400
#7EA8B7
oklch(70.6% 0.05 221.9)
-
Step 500
500
#5C93A5
oklch(63.2% 0.064 220.8)
-
Step 600
600
#407D90
oklch(55.7% 0.069 220.6)
-
Step 700
700
#31697B
oklch(49.1% 0.065 221.7)
-
Step 800
800 (this color)
#25515F
oklch(41% 0.054 221.3)
-
Step 900
900
#274751
oklch(37.8% 0.041 220.1)
-
Step 950
950
#172930
oklch(26.9% 0.027 224.6)
#25515F 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) | #494F60 | 0.045 |
| Deuteranopia (no green cones) | #40495F | 0.039 |
| Tritanopia (no blue cones) | #005655 | 0.034 |
| Achromatopsia (no color) | #4B4B4B | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25515F
#25515F
oklch(41% 0.054 221.3)
- #634033
#634033
oklch(40.8% 0.054 41.2)
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 #25515F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.026
- Dark Slate Gray #2F4F4F ΔE 0.026
- Dark Grey Blue #29465B ΔE 0.034
- Charcoal #264653 ΔE 0.036
- Dark Teal #014D4E ΔE 0.040
- Petrol #005F6A ΔE 0.044
- Dark Blue Green #005249 ΔE 0.047
- YInMn Blue #415A77 ΔE 0.058
Use #25515F 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.