#0C5B55
Closest named color: Deep Teal (#00555A). oklch(42.6% 0.071 186.8), rgb(12, 91, 85).
Aa
White text reads best on this color (7.94:1).
About this color
#0C5B55 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 43%, its chroma 0.071 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.025 away. White text reads best on it, at 7.94:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.64:1 |
| White text | 7.94:1 |
Values
| HEX | #0C5B55 |
| RGB | rgb(12, 91, 85) |
| HSL | hsl(175, 77%, 20%) |
| OKLCH | oklch(42.6% 0.071 186.8) |
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 #0C5B55 | 7.94:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #0C5B55 | 2.64:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #0C5B55 text on white | 7.94:1 | AAA | Lc 87.2 | Fine for body text |
| #0C5B55 text on black | 2.64:1 | Fails | Lc -14.9 | Not readable |
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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2EDEB
oklch(93.7% 0.012 184.1)
-
Step 200
200
#C9DEDB
oklch(88.4% 0.023 186.4)
-
Step 300
300
#A3CAC5
oklch(80.9% 0.042 186.8)
-
Step 400
400
#6FAEA7
oklch(70.6% 0.066 186.9)
-
Step 500
500
#439A92
oklch(63.1% 0.084 187.1)
-
Step 600
600
#18847C
oklch(55.5% 0.091 187.1)
-
Step 700
700
#027069
oklch(49.1% 0.085 187.2)
-
Step 800
800 (this color)
#0C5B55
oklch(42.6% 0.071 186.8)
-
Step 900
900
#174B46
oklch(37.7% 0.055 186.2)
-
Step 950
950
#0F2C29
oklch(27% 0.035 186.3)
#0C5B55 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) | #565555 | 0.076 |
| Deuteranopia (no green cones) | #4B4E56 | 0.070 |
| Tritanopia (no blue cones) | #005D59 | 0.008 |
| Achromatopsia (no color) | #515151 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C5B55
#0C5B55
oklch(42.6% 0.071 186.8)
- #6F3D48
#6F3D48
oklch(42.5% 0.071 6.4)
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 #0C5B55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.025
- Dark Green Blue #1F6357 ΔE 0.029
- Dark Blue Green #005249 ΔE 0.033
- Petrol #005F6A ΔE 0.034
- Dark Slate Gray #2F4F4F ΔE 0.041
- Dark Teal #014D4E ΔE 0.047
- Dark Aqua #05696B ΔE 0.050
- Spruce #0A5F38 ΔE 0.052
Use #0C5B55 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.