#0B515D
Closest named color: Deep Teal (#00555A). oklch(40.1% 0.066 212.7), rgb(11, 81, 93).
Aa
White text reads best on this color (8.93:1).
About this color
#0B515D is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.066 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.016 away. White text reads best on it, at 8.93:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.34:1 |
| White text | 8.93:1 |
Values
| HEX | #0B515D |
| RGB | rgb(11, 81, 93) |
| HSL | hsl(189, 79%, 20%) |
| OKLCH | oklch(40.1% 0.066 212.7) |
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 #0B515D | 8.93:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #0B515D | 2.34:1 | Fails | Lc 13.8 | Not readable |
| #0B515D text on white | 8.93:1 | AAA | Lc 90.1 | Preferred for body text |
| #0B515D text on black | 2.34:1 | Fails | Lc -12.1 | 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 900.
-
Step 50
50
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0EDEF
oklch(93.7% 0.014 207.9)
-
Step 200
200
#C5DEE4
oklch(88.4% 0.028 213.8)
-
Step 300
300
#9CCAD4
oklch(81% 0.05 212.5)
-
Step 400
400
#61AEBE
oklch(70.7% 0.08 212.6)
-
Step 500
500
#2599AE
oklch(63.1% 0.102 213.1)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900 (this color)
#0B515D
oklch(40.1% 0.066 212.7)
-
Step 950
950
#072C33
oklch(27.1% 0.042 213.1)
#0B515D 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) | #484E5E | 0.061 |
| Deuteranopia (no green cones) | #3D465D | 0.055 |
| Tritanopia (no blue cones) | #005655 | 0.025 |
| Achromatopsia (no color) | #494949 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B515D
#0B515D
oklch(40.1% 0.066 212.7)
- #673A30
#673A30
oklch(40.1% 0.066 33.4)
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 #0B515D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.016
- Dark Teal #014D4E ΔE 0.027
- Dark Slate Gray #2F4F4F ΔE 0.032
- Charcoal #264653 ΔE 0.036
- Dark Blue Green #005249 ΔE 0.037
- Dark Grey Blue #29465B ΔE 0.038
- Petrol #005F6A ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.062
Use #0B515D 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.