#2C5B63
Closest named color: Petrol (#005F6A). oklch(44.2% 0.053 209.9), rgb(44, 91, 99).
Aa
White text reads best on this color (7.54:1).
About this color
#2C5B63 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.053 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.024 away. White text reads best on it, at 7.54:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.78:1 |
| White text | 7.54:1 |
Values
| HEX | #2C5B63 |
| RGB | rgb(44, 91, 99) |
| HSL | hsl(189, 38%, 28%) |
| OKLCH | oklch(44.2% 0.053 209.9) |
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 #2C5B63 | 7.54:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #2C5B63 | 2.78:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #2C5B63 text on white | 7.54:1 | AAA | Lc 86.1 | Fine for body text |
| #2C5B63 text on black | 2.78:1 | Fails | Lc -16.0 | 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
#CDDCDF
oklch(88.4% 0.017 211)
-
Step 300
300
#ABC6CC
oklch(80.8% 0.03 212.6)
-
Step 400
400
#7DA9B2
oklch(70.6% 0.049 211.6)
-
Step 500
500
#5A949E
oklch(63.1% 0.062 209.6)
-
Step 600
600
#3D7E89
oklch(55.5% 0.068 209.9)
-
Step 700
700
#2E6B75
oklch(49.2% 0.064 209.7)
-
Step 800
800 (this color)
#2C5B63
oklch(44.2% 0.053 209.9)
-
Step 900
900
#25484E
oklch(37.8% 0.042 209.8)
-
Step 950
950
#172A2D
oklch(27% 0.025 208.4)
#2C5B63 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) | #545864 | 0.050 |
| Deuteranopia (no green cones) | #4B5163 | 0.047 |
| Tritanopia (no blue cones) | #045F5D | 0.029 |
| Achromatopsia (no color) | #545454 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C5B63
#2C5B63
oklch(44.2% 0.053 209.9)
- #6D4842
#6D4842
oklch(44.2% 0.052 29.5)
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 #2C5B63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.024
- Deep Teal #00555A ΔE 0.038
- Dark Green Blue #1F6357 ΔE 0.039
- Dark Slate Gray #2F4F4F ΔE 0.043
- Dark Aqua #05696B ΔE 0.044
- YInMn Blue #415A77 ΔE 0.044
- Dark Blue Green #005249 ΔE 0.059
- Slate #516572 ΔE 0.061
Use #2C5B63 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.