#255C68
Closest named color: Petrol (#005F6A). oklch(44.3% 0.06 214.4), rgb(37, 92, 104).
Aa
White text reads best on this color (7.47:1).
About this color
#255C68 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.060 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.018 away. White text reads best on it, at 7.47:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.80:1 |
| White text | 7.47:1 |
Values
| HEX | #255C68 |
| RGB | rgb(37, 92, 104) |
| HSL | hsl(191, 48%, 28%) |
| OKLCH | oklch(44.3% 0.06 214.4) |
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 #255C68 | 7.47:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #255C68 | 2.80:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #255C68 text on white | 7.47:1 | AAA | Lc 85.8 | Fine for body text |
| #255C68 text on black | 2.80:1 | Fails | Lc -16.3 | 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
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CBDDE1
oklch(88.5% 0.02 212.6)
-
Step 300
300
#A8C7CF
oklch(80.9% 0.035 215.1)
-
Step 400
400
#77AAB6
oklch(70.6% 0.057 214)
-
Step 500
500
#5295A4
oklch(63.1% 0.072 213.9)
-
Step 600
600
#327F90
oklch(55.6% 0.079 214.8)
-
Step 700
700
#246B7A
oklch(49.1% 0.073 214.5)
-
Step 800
800 (this color)
#255C68
oklch(44.3% 0.06 214.4)
-
Step 900
900
#204851
oklch(37.7% 0.047 214.4)
-
Step 950
950
#142A2F
oklch(26.9% 0.029 214)
#255C68 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) | #535969 | 0.054 |
| Deuteranopia (no green cones) | #495268 | 0.048 |
| Tritanopia (no blue cones) | #006160 | 0.029 |
| Achromatopsia (no color) | #555555 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255C68
#255C68
oklch(44.3% 0.06 214.4)
- #71473D
#71473D
oklch(44.3% 0.061 34.1)
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 #255C68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.018
- Deep Teal #00555A ΔE 0.038
- Dark Aqua #05696B ΔE 0.041
- YInMn Blue #415A77 ΔE 0.042
- Dark Green Blue #1F6357 ΔE 0.042
- Dark Slate Gray #2F4F4F ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.057
- Deep Sea Blue #015482 ΔE 0.059
Use #255C68 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.