#0C575D
Closest named color: Deep Teal (#00555A). oklch(41.8% 0.067 203.4), rgb(12, 87, 93).
Aa
White text reads best on this color (8.27:1).
About this color
#0C575D is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.067 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.009 away. White text reads best on it, at 8.27:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Values
| HEX | #0C575D |
| RGB | rgb(12, 87, 93) |
| HSL | hsl(184, 77%, 21%) |
| OKLCH | oklch(41.8% 0.067 203.4) |
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 #0C575D | 8.27:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #0C575D | 2.53:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #0C575D text on white | 8.27:1 | AAA | Lc 88.2 | Fine for body text |
| #0C575D text on black | 2.53:1 | Fails | Lc -14.0 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A4C9CC
oklch(81% 0.04 202.5)
-
Step 400
400
#70ADB2
oklch(70.8% 0.063 202.4)
-
Step 500
500
#45989F
oklch(63.1% 0.081 202.8)
-
Step 600
600
#1D828A
oklch(55.6% 0.087 203.1)
-
Step 700
700
#0A6E75
oklch(49.1% 0.081 202.8)
-
Step 800
800 (this color)
#0C575D
oklch(41.8% 0.067 203.4)
-
Step 900
900
#184A4E
oklch(37.8% 0.053 202.6)
-
Step 950
950
#102B2E
oklch(27% 0.033 205.1)
#0C575D 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) | #4F535D | 0.067 |
| Deuteranopia (no green cones) | #444B5D | 0.061 |
| Tritanopia (no blue cones) | #005B59 | 0.017 |
| Achromatopsia (no color) | #4E4E4E | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C575D
#0C575D
oklch(41.8% 0.067 203.4)
- #6D3D3B
#6D3D3B
oklch(41.8% 0.068 22.9)
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 #0C575D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.009
- Petrol #005F6A ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.034
- Dark Blue Green #005249 ΔE 0.035
- Dark Teal #014D4E ΔE 0.038
- Dark Green Blue #1F6357 ΔE 0.046
- Charcoal #264653 ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.056
Use #0C575D 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.