#25554A
Closest named color: Dark Blue Green (#005249). oklch(41.2% 0.056 176.3), rgb(37, 85, 74).
Aa
White text reads best on this color (8.47:1).
About this color
#25554A is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.056 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.025 away. White text reads best on it, at 8.47:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.47:1 |
| White text | 8.47:1 |
Values
| HEX | #25554A |
| RGB | rgb(37, 85, 74) |
| HSL | hsl(166, 39%, 24%) |
| OKLCH | oklch(41.2% 0.056 176.3) |
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 #25554A | 8.47:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #25554A | 2.47:1 | Fails | Lc 15.0 | Not readable |
| #25554A text on white | 8.47:1 | AAA | Lc 89.0 | Fine for body text |
| #25554A text on black | 2.47:1 | Fails | Lc -13.2 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CDDDD9
oklch(88.4% 0.018 179.3)
-
Step 300
300
#ACC8C0
oklch(81% 0.032 176.4)
-
Step 400
400
#7EAC9F
oklch(70.8% 0.053 175.4)
-
Step 500
500
#5B9788
oklch(63.1% 0.067 176.3)
-
Step 600
600
#3F8172
oklch(55.5% 0.072 176.7)
-
Step 700
700
#306D5F
oklch(49% 0.068 176.1)
-
Step 800
800 (this color)
#25554A
oklch(41.2% 0.056 176.3)
-
Step 900
900
#264941
oklch(37.6% 0.043 177.4)
-
Step 950
950
#172B26
oklch(27% 0.028 176.4)
#25554A 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) | #52504A | 0.059 |
| Deuteranopia (no green cones) | #4A4B4B | 0.055 |
| Tritanopia (no blue cones) | #0D5652 | 0.018 |
| Achromatopsia (no color) | #4D4D4D | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25554A
#25554A
oklch(41.2% 0.056 176.3)
- #643E4C
#643E4C
oklch(41.3% 0.057 356.2)
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 #25554A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.025
- Dark Slate Gray #2F4F4F ΔE 0.026
- Deep Teal #00555A ΔE 0.031
- Dark Teal #014D4E ΔE 0.039
- Dark Green Blue #1F6357 ΔE 0.044
- Pine #2B5D34 ΔE 0.050
- Petrol #005F6A ΔE 0.052
- Spruce #0A5F38 ΔE 0.053
Use #25554A 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.