#25585F
Closest named color: Deep Teal (#00555A). oklch(42.9% 0.055 207.4), rgb(37, 88, 95).
Aa
White text reads best on this color (7.95:1).
About this color
#25585F is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.055 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.025 away. White text reads best on it, at 7.95:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.63:1 |
| White text | 7.95:1 |
Values
| HEX | #25585F |
| RGB | rgb(37, 88, 95) |
| HSL | hsl(187, 44%, 26%) |
| OKLCH | oklch(42.9% 0.055 207.4) |
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 #25585F | 7.95:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #25585F | 2.63:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #25585F text on white | 7.95:1 | AAA | Lc 87.4 | Fine for body text |
| #25585F text on black | 2.63:1 | Fails | Lc -14.7 | 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
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CCDDDF
oklch(88.5% 0.018 205.3)
-
Step 300
300
#A9C7CB
oklch(80.9% 0.033 206.4)
-
Step 400
400
#7AAAB1
oklch(70.6% 0.052 207.3)
-
Step 500
500
#56959E
oklch(63.1% 0.066 207.4)
-
Step 600
600
#387F89
oklch(55.5% 0.072 207.7)
-
Step 700
700
#2A6B74
oklch(49% 0.067 207.7)
-
Step 800
800 (this color)
#25585F
oklch(42.9% 0.055 207.4)
-
Step 900
900
#23484D
oklch(37.6% 0.043 206.9)
-
Step 950
950
#152A2D
oklch(26.9% 0.027 207.4)
#25585F 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) | #51555F | 0.053 |
| Deuteranopia (no green cones) | #484E5F | 0.049 |
| Tritanopia (no blue cones) | #005C5A | 0.025 |
| Achromatopsia (no color) | #515151 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25585F
#25585F
oklch(42.9% 0.055 207.4)
- #6B443F
#6B443F
oklch(43% 0.055 27.6)
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 #25585F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.025
- Petrol #005F6A ΔE 0.026
- Dark Slate Gray #2F4F4F ΔE 0.033
- Dark Green Blue #1F6357 ΔE 0.042
- Dark Blue Green #005249 ΔE 0.047
- Dark Teal #014D4E ΔE 0.050
- Dark Aqua #05696B ΔE 0.052
- YInMn Blue #415A77 ΔE 0.053
Use #25585F 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.