#2C5A5B
Closest named color: Petrol (#005F6A). oklch(43.6% 0.05 197.3), rgb(44, 90, 91).
Aa
White text reads best on this color (7.71:1).
About this color
#2C5A5B is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.050 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.030 away. White text reads best on it, at 7.71:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.72:1 |
| White text | 7.71:1 |
Values
| HEX | #2C5A5B |
| RGB | rgb(44, 90, 91) |
| HSL | hsl(181, 35%, 26%) |
| OKLCH | oklch(43.6% 0.05 197.3) |
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 #2C5A5B | 7.71:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #2C5A5B | 2.72:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #2C5A5B text on white | 7.71:1 | AAA | Lc 86.7 | Fine for body text |
| #2C5A5B text on black | 2.72:1 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#ACC7C7
oklch(81% 0.029 196.6)
-
Step 400
400
#7EAAAB
oklch(70.7% 0.047 197.9)
-
Step 500
500
#5C9596
oklch(63.1% 0.06 197.2)
-
Step 600
600
#3F7F81
oklch(55.5% 0.066 198.1)
-
Step 700
700
#316B6D
oklch(49% 0.06 198.4)
-
Step 800
800 (this color)
#2C5A5B
oklch(43.6% 0.05 197.3)
-
Step 900
900
#274849
oklch(37.7% 0.039 198.1)
-
Step 950
950
#172A2B
oklch(26.9% 0.025 200)
#2C5A5B 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) | #55565B | 0.053 |
| Deuteranopia (no green cones) | #4D505B | 0.050 |
| Tritanopia (no blue cones) | #105D5A | 0.020 |
| Achromatopsia (no color) | #535353 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C5A5B
#2C5A5B
oklch(43.6% 0.05 197.3)
- #6A4647
#6A4647
oklch(43.5% 0.05 17.5)
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 #2C5A5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.030
- Dark Green Blue #1F6357 ΔE 0.033
- Deep Teal #00555A ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.035
- Dark Aqua #05696B ΔE 0.047
- Dark Blue Green #005249 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.056
- Dark Teal #014D4E ΔE 0.056
Use #2C5A5B 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.