#0B4C55
Closest named color: Dark Teal (#014D4E). oklch(38.3% 0.062 209.3), rgb(11, 76, 85).
Aa
White text reads best on this color (9.63:1).
About this color
#0B4C55 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.062 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.015 away. White text reads best on it, at 9.63:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.17:1 |
| White text | 9.63:1 |
Values
| HEX | #0B4C55 |
| RGB | rgb(11, 76, 85) |
| HSL | hsl(187, 77%, 19%) |
| OKLCH | oklch(38.3% 0.062 209.3) |
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 #0B4C55 | 9.63:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #0B4C55 | 2.17:1 | Fails | Lc 12.0 | Not readable |
| #0B4C55 text on white | 9.63:1 | AAA | Lc 92.0 | Preferred for body text |
| #0B4C55 text on black | 2.17:1 | Fails | Lc -10.4 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECEF
oklch(93.5% 0.013 214.4)
-
Step 200
200
#C7DEE2
oklch(88.5% 0.025 209.3)
-
Step 300
300
#9FC9D1
oklch(80.8% 0.046 210.5)
-
Step 400
400
#66AEBA
oklch(70.8% 0.074 209.3)
-
Step 500
500
#3199A8
oklch(63.1% 0.094 208.9)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900 (this color)
#0B4C55
oklch(38.3% 0.062 209.3)
-
Step 950
950
#0A2C31
oklch(27.1% 0.039 208.9)
#0B4C55 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) | #444956 | 0.059 |
| Deuteranopia (no green cones) | #3A4255 | 0.052 |
| Tritanopia (no blue cones) | #00504F | 0.020 |
| Achromatopsia (no color) | #454545 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B4C55
#0B4C55
oklch(38.3% 0.062 209.3)
- #603630
#603630
oklch(38.3% 0.062 28.9)
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 #0B4C55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.015
- Charcoal #264653 ΔE 0.025
- Deep Teal #00555A ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.033
- Dark Blue Green #005249 ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.056
Use #0B4C55 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.