#255E70
Closest named color: Petrol (#005F6A). oklch(45.2% 0.066 222), rgb(37, 94, 112).
Aa
White text reads best on this color (7.20:1).
About this color
#255E70 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.066 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.021 away. White text reads best on it, at 7.20:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.91:1 |
| White text | 7.20:1 |
Values
| HEX | #255E70 |
| RGB | rgb(37, 94, 112) |
| HSL | hsl(194, 50%, 29%) |
| OKLCH | oklch(45.2% 0.066 222) |
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 #255E70 | 7.20:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #255E70 | 2.91:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #255E70 text on white | 7.20:1 | AAA | Lc 84.8 | Fine for body text |
| #255E70 text on black | 2.91:1 | Fails | Lc -17.2 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CBDDE3
oklch(88.6% 0.021 219.7)
-
Step 300
300
#A7C7D3
oklch(81% 0.038 222.5)
-
Step 400
400
#75AABC
oklch(70.7% 0.062 221.2)
-
Step 500
500
#4F94AB
oklch(63% 0.078 222)
-
Step 600
600
#2E7E97
oklch(55.5% 0.085 222.4)
-
Step 700
700
#1F6A81
oklch(49% 0.079 222.8)
-
Step 800
800 (this color)
#255E70
oklch(45.2% 0.066 222)
-
Step 900
900
#1E4855
oklch(37.8% 0.051 221)
-
Step 950
950
#132A32
oklch(27% 0.033 222.8)
#255E70 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) | #535C71 | 0.053 |
| Deuteranopia (no green cones) | #495470 | 0.047 |
| Tritanopia (no blue cones) | #006464 | 0.036 |
| Achromatopsia (no color) | #575757 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255E70
#255E70
oklch(45.2% 0.066 222)
- #754938
#754938
oklch(45.2% 0.066 41.8)
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 #255E70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.021
- YInMn Blue #415A77 ΔE 0.034
- Dark Aqua #05696B ΔE 0.040
- Light Navy Blue #2E5A88 ΔE 0.046
- Deep Teal #00555A ΔE 0.049
- Dark Green Blue #1F6357 ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.053
- Denim #3B638C ΔE 0.053
Use #255E70 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.