#00CDB0
Closest named color: Emerald (#06D6A0). oklch(75.9% 0.14 177.6), rgb(0, 205, 176).
Aa
Black text reads best on this color (10.35:1).
About this color
#00CDB0 is a medium-light, vivid teal or cyan. In OKLCH its lightness is 76%, its chroma 0.140 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Emerald (#06D6A0), ΔE 0.039 away. Black text reads best on it, at 10.35:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Emerald (#06D6A0) |
| Black text | 10.35:1 |
| White text | 2.02:1 |
Values
| HEX | #00CDB0 |
| RGB | rgb(0, 205, 176) |
| HSL | hsl(172, 100%, 40%) |
| OKLCH | oklch(75.9% 0.14 177.6) |
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 #00CDB0 | 2.02:1 | Fails | Lc -43.1 | Non-text elements, placeholder text |
| Black text on #00CDB0 | 10.35:1 | AAA | Lc 65.2 | Content text, not long reading |
| #00CDB0 text on white | 2.02:1 | Fails | Lc 38.7 | Non-text elements, placeholder text |
| #00CDB0 text on black | 10.35:1 | AAA | Lc -63.7 | 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 300.
-
Step 50
50
#E9FAF5
oklch(97.1% 0.019 176.5)
-
Step 100
100
#CEF3EA
oklch(93.5% 0.04 179)
-
Step 200
200
#A0EBD9
oklch(88.6% 0.078 177.7)
-
Step 300
300 (this color)
#00CDB0
oklch(75.9% 0.14 177.6)
-
Step 400
400
#00BAA0
oklch(70.6% 0.13 177.9)
-
Step 500
500
#00A089
oklch(63.1% 0.116 177.6)
-
Step 600
600
#008673
oklch(55.5% 0.102 178.1)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#004D41
oklch(37.6% 0.069 177.7)
-
Step 950
950
#002E26
oklch(26.9% 0.05 177.5)
#00CDB0 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) | #C4BFAF | 0.147 |
| Deuteranopia (no green cones) | #AFAFB2 | 0.142 |
| Tritanopia (no blue cones) | #00D0C4 | 0.028 |
| Achromatopsia (no color) | #B6B6B6 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00CDB0
#00CDB0
oklch(75.9% 0.14 177.6)
- #F689B1
#F689B1
oklch(75.9% 0.139 357.6)
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 #00CDB0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald #06D6A0 ΔE 0.039
- Medium Aquamarine #66CDAA ΔE 0.040
- Dark Turquoise #00CED1 ΔE 0.048
- Medium Turquoise #48D1CC ΔE 0.048
- Greenblue #23C48B ΔE 0.049
- Topaz #13BBAF ΔE 0.052
- Green Blue #01C08D ΔE 0.053
- Seafoam Blue #78D1B6 ΔE 0.060
Use #00CDB0 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.