#0B4540
Closest named color: Dark Teal (#014D4E). oklch(35.4% 0.057 186.2), rgb(11, 69, 64).
Aa
White text reads best on this color (10.82:1).
About this color
#0B4540 is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.057 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.030 away. White text reads best on it, at 10.82:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 1.93:1 |
| White text | 10.82:1 |
Values
| HEX | #0B4540 |
| RGB | rgb(11, 69, 64) |
| HSL | hsl(175, 72%, 16%) |
| OKLCH | oklch(35.4% 0.057 186.2) |
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 #0B4540 | 10.82:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #0B4540 | 1.93:1 | Fails | Lc 9.1 | Not readable |
| #0B4540 text on white | 10.82:1 | AAA | Lc 94.8 | Preferred for body text |
| #0B4540 text on black | 1.93:1 | Fails | Lc -7.8 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEB
oklch(93.7% 0.013 185.1)
-
Step 200
200
#C9DFDB
oklch(88.6% 0.024 183.7)
-
Step 300
300
#A2CAC5
oklch(80.9% 0.043 187)
-
Step 400
400
#6DAFA7
oklch(70.7% 0.069 186)
-
Step 500
500
#3F9B91
oklch(63.2% 0.088 185.4)
-
Step 600
600
#0D857C
oklch(55.6% 0.095 186.4)
-
Step 700
700
#007068
oklch(49.1% 0.086 186.2)
-
Step 800
800
#055C55
oklch(42.8% 0.074 185.8)
-
Step 900
900 (this color)
#0B4540
oklch(35.4% 0.057 186.2)
-
Step 950
950
#0E2C29
oklch(26.9% 0.036 186.4)
#0B4540 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) | #414140 | 0.061 |
| Deuteranopia (no green cones) | #393B41 | 0.057 |
| Tritanopia (no blue cones) | #004743 | 0.007 |
| Achromatopsia (no color) | #3D3D3D | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B4540
#0B4540
oklch(35.4% 0.057 186.2)
- #552E37
#552E37
oklch(35.4% 0.058 5.6)
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 #0B4540, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.030
- Evergreen #05472A ΔE 0.040
- Dark Blue Green #005249 ΔE 0.042
- Charcoal #264653 ΔE 0.042
- Midnight Green #073B4C ΔE 0.046
- Dark Blue Grey #1F3B4D ΔE 0.049
- Onyx #343A40 ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.053
Use #0B4540 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.