#255A60
Closest named color: Petrol (#005F6A). oklch(43.5% 0.057 205.4), rgb(37, 90, 96).
Aa
White text reads best on this color (7.74:1).
About this color
#255A60 is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.057 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.022 away. White text reads best on it, at 7.74:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.71:1 |
| White text | 7.74:1 |
Values
| HEX | #255A60 |
| RGB | rgb(37, 90, 96) |
| HSL | hsl(186, 44%, 26%) |
| OKLCH | oklch(43.5% 0.057 205.4) |
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 #255A60 | 7.74:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #255A60 | 2.71:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #255A60 text on white | 7.74:1 | AAA | Lc 86.7 | Fine for body text |
| #255A60 text on black | 2.71:1 | Fails | Lc -15.4 | 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 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
#79ABB0
oklch(70.8% 0.053 203.8)
-
Step 500
500
#54959D
oklch(63% 0.068 205.8)
-
Step 600
600
#368088
oklch(55.7% 0.074 205)
-
Step 700
700
#276C73
oklch(49.1% 0.069 204.6)
-
Step 800
800 (this color)
#255A60
oklch(43.5% 0.057 205.4)
-
Step 900
900
#22484D
oklch(37.6% 0.044 206.7)
-
Step 950
950
#152A2D
oklch(26.9% 0.027 207.4)
#255A60 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) | #535660 | 0.056 |
| Deuteranopia (no green cones) | #4A5060 | 0.051 |
| Tritanopia (no blue cones) | #005E5C | 0.024 |
| Achromatopsia (no color) | #535353 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255A60
#255A60
oklch(43.5% 0.057 205.4)
- #6D4541
#6D4541
oklch(43.5% 0.056 25.9)
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 #255A60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.022
- Deep Teal #00555A ΔE 0.029
- Dark Green Blue #1F6357 ΔE 0.037
- Dark Slate Gray #2F4F4F ΔE 0.038
- Dark Aqua #05696B ΔE 0.046
- Dark Blue Green #005249 ΔE 0.050
- YInMn Blue #415A77 ΔE 0.052
- Dark Teal #014D4E ΔE 0.055
Use #255A60 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.