#0BCBA9
Closest named color: Emerald (#06D6A0). oklch(75.2% 0.141 174.7), rgb(11, 203, 169).
Aa
Black text reads best on this color (10.12:1).
About this color
#0BCBA9 is a medium-light, vivid teal or cyan. In OKLCH its lightness is 75%, its chroma 0.141 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Emerald (#06D6A0), ΔE 0.038 away. Black text reads best on it, at 10.12:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Emerald (#06D6A0) |
| Black text | 10.12:1 |
| White text | 2.07:1 |
Values
| HEX | #0BCBA9 |
| RGB | rgb(11, 203, 169) |
| HSL | hsl(169, 90%, 42%) |
| OKLCH | oklch(75.2% 0.141 174.7) |
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 #0BCBA9 | 2.07:1 | Fails | Lc -44.4 | Non-text elements, placeholder text |
| Black text on #0BCBA9 | 10.12:1 | AAA | Lc 64.1 | Content text, not long reading |
| #0BCBA9 text on white | 2.07:1 | Fails | Lc 39.8 | Non-text elements, placeholder text |
| #0BCBA9 text on black | 10.12:1 | AAA | Lc -62.5 | Content text, not long reading |
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 400.
-
Step 50
50
#EEF8F5
oklch(97.1% 0.011 176.3)
-
Step 100
100
#D9F0E9
oklch(93.6% 0.026 175.6)
-
Step 200
200
#B9E4D7
oklch(88.5% 0.048 174.8)
-
Step 300
300
#80D4BD
oklch(81% 0.089 174.5)
-
Step 400
400 (this color)
#0BCBA9
oklch(75.2% 0.141 174.7)
-
Step 500
500
#00A085
oklch(63% 0.119 175)
-
Step 600
600
#00876F
oklch(55.6% 0.106 174.3)
-
Step 700
700
#00715D
oklch(49% 0.093 174.7)
-
Step 800
800
#005D4C
oklch(42.7% 0.081 174.6)
-
Step 900
900
#004E3F
oklch(37.8% 0.072 174.1)
-
Step 950
950
#002E25
oklch(26.9% 0.05 175.6)
#0BCBA9 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) | #C3BDA7 | 0.146 |
| Deuteranopia (no green cones) | #AEAEAC | 0.140 |
| Tritanopia (no blue cones) | #00CEC1 | 0.033 |
| Achromatopsia (no color) | #B4B4B4 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0BCBA9
#0BCBA9
oklch(75.2% 0.141 174.7)
- #F387B4
#F387B4
oklch(75.3% 0.14 354.6)
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 #0BCBA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald #06D6A0 ΔE 0.038
- Greenblue #23C48B ΔE 0.040
- Medium Aquamarine #66CDAA ΔE 0.042
- Green Blue #01C08D ΔE 0.043
- Topaz #13BBAF ΔE 0.050
- Dark Turquoise #00CED1 ΔE 0.056
- Medium Turquoise #48D1CC ΔE 0.057
- Seafoam Blue #78D1B6 ΔE 0.064
Use #0BCBA9 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.