#0B5158
Closest named color: Deep Teal (#00555A). oklch(39.9% 0.064 205.5), rgb(11, 81, 88).
Aa
White text reads best on this color (9.00:1).
About this color
#0B5158 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.064 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.013 away. White text reads best on it, at 9.00:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.33:1 |
| White text | 9.00:1 |
Values
| HEX | #0B5158 |
| RGB | rgb(11, 81, 88) |
| HSL | hsl(185, 78%, 19%) |
| OKLCH | oklch(39.9% 0.064 205.5) |
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 #0B5158 | 9.00:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #0B5158 | 2.33:1 | Fails | Lc 13.7 | Not readable |
| #0B5158 text on white | 9.00:1 | AAA | Lc 90.3 | Preferred for body text |
| #0B5158 text on black | 2.33:1 | Fails | Lc -12.0 | 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 900.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E0EDEE
oklch(93.7% 0.014 202.5)
-
Step 200
200
#C6DFE2
oklch(88.6% 0.027 205.4)
-
Step 300
300
#9DCAD0
oklch(80.9% 0.048 206.4)
-
Step 400
400
#62AFB8
oklch(70.8% 0.077 205.3)
-
Step 500
500
#279AA6
oklch(63% 0.098 205.6)
-
Step 600
600
#00838E
oklch(55.7% 0.095 205.2)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900 (this color)
#0B5158
oklch(39.9% 0.064 205.5)
-
Step 950
950
#072C30
oklch(27% 0.041 205.5)
#0B5158 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) | #494D58 | 0.063 |
| Deuteranopia (no green cones) | #3F4658 | 0.057 |
| Tritanopia (no blue cones) | #005553 | 0.018 |
| Achromatopsia (no color) | #494949 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B5158
#0B5158
oklch(39.9% 0.064 205.5)
- #663935
#663935
oklch(39.9% 0.065 25.8)
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 #0B5158, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.013
- Dark Teal #014D4E ΔE 0.020
- Dark Blue Green #005249 ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.028
- Charcoal #264653 ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.042
- Petrol #005F6A ΔE 0.047
- Dark Green Blue #1F6357 ΔE 0.063
Use #0B5158 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.