#0C5366
Closest named color: Deep Teal (#00555A). oklch(41.1% 0.071 221.5), rgb(12, 83, 102).
Aa
White text reads best on this color (8.58:1).
About this color
#0C5366 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 41%, its chroma 0.071 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.024 away. White text reads best on it, at 8.58:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.44:1 |
| White text | 8.58:1 |
Values
| HEX | #0C5366 |
| RGB | rgb(12, 83, 102) |
| HSL | hsl(193, 79%, 22%) |
| OKLCH | oklch(41.1% 0.071 221.5) |
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 #0C5366 | 8.58:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #0C5366 | 2.44:1 | Fails | Lc 14.8 | Not readable |
| #0C5366 text on white | 8.58:1 | AAA | Lc 89.1 | Fine for body text |
| #0C5366 text on black | 2.44:1 | Fails | Lc -13.1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A4C7D4
oklch(80.8% 0.042 222.4)
-
Step 400
400
#71AABE
oklch(70.6% 0.066 222.1)
-
Step 500
500
#4795AE
oklch(63.1% 0.085 221.7)
-
Step 600
600
#217F9A
oklch(55.6% 0.093 221.9)
-
Step 700
700
#106B83
oklch(49% 0.086 221.5)
-
Step 800
800 (this color)
#0C5366
oklch(41.1% 0.071 221.5)
-
Step 900
900
#194856
oklch(37.6% 0.055 220.9)
-
Step 950
950
#102A33
oklch(26.9% 0.036 223.3)
#0C5366 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) | #485167 | 0.058 |
| Deuteranopia (no green cones) | #3C4866 | 0.052 |
| Tritanopia (no blue cones) | #005959 | 0.034 |
| Achromatopsia (no color) | #4C4C4C | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C5366
#0C5366
oklch(41.1% 0.071 221.5)
- #6B3D2B
#6B3D2B
oklch(41.2% 0.071 41.9)
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 #0C5366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.024
- Petrol #005F6A ΔE 0.038
- Dark Slate Gray #2F4F4F ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.042
- Dark Teal #014D4E ΔE 0.043
- Charcoal #264653 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.047
- Dark Blue Green #005249 ΔE 0.051
Use #0C5366 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.