#0C5553
Closest named color: Deep Teal (#00555A). oklch(40.8% 0.066 192), rgb(12, 85, 83).
Aa
White text reads best on this color (8.60:1).
About this color
#0C5553 is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.066 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.012 away. White text reads best on it, at 8.60:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.43:1 |
| White text | 8.60:1 |
Values
| HEX | #0C5553 |
| RGB | rgb(12, 85, 83) |
| HSL | hsl(178, 75%, 19%) |
| OKLCH | oklch(40.8% 0.066 192) |
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 #0C5553 | 8.60:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #0C5553 | 2.43:1 | Fails | Lc 14.8 | Not readable |
| #0C5553 text on white | 8.60:1 | AAA | Lc 89.2 | Fine for body text |
| #0C5553 text on black | 2.43:1 | Fails | Lc -13.0 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CADEDD
oklch(88.5% 0.021 193.1)
-
Step 300
300
#A5C9C7
oklch(80.9% 0.038 192.3)
-
Step 400
400
#72ADAA
oklch(70.6% 0.061 191.8)
-
Step 500
500
#489996
oklch(63.2% 0.079 192.1)
-
Step 600
600
#238380
oklch(55.6% 0.086 191.9)
-
Step 700
700
#126F6C
oklch(49.2% 0.08 191.4)
-
Step 800
800 (this color)
#0C5553
oklch(40.8% 0.066 192)
-
Step 900
900
#1A4A49
oklch(37.6% 0.051 193.3)
-
Step 950
950
#112C2A
oklch(27.1% 0.033 189)
#0C5553 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) | #4F5053 | 0.069 |
| Deuteranopia (no green cones) | #454954 | 0.065 |
| Tritanopia (no blue cones) | #005854 | 0.010 |
| Achromatopsia (no color) | #4C4C4C | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C5553
#0C5553
oklch(40.8% 0.066 192)
- #693A40
#693A40
oklch(40.8% 0.067 12.3)
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 #0C5553, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.012
- Dark Blue Green #005249 ΔE 0.019
- Dark Teal #014D4E ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.029
- Petrol #005F6A ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.048
- Charcoal #264653 ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.057
Use #0C5553 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.