#03CEDB
Closest named color: Dark Turquoise (#00CED1). oklch(77.6% 0.132 202.9), rgb(3, 206, 219).
Aa
Black text reads best on this color (10.85:1).
About this color
#03CEDB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 78%, its chroma 0.132 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Turquoise (#00CED1), ΔE 0.015 away. Black text reads best on it, at 10.85:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (78%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Dark Turquoise (#00CED1) |
| Black text | 10.85:1 |
| White text | 1.93:1 |
Values
| HEX | #03CEDB |
| RGB | rgb(3, 206, 219) |
| HSL | hsl(184, 97%, 44%) |
| OKLCH | oklch(77.6% 0.132 202.9) |
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 #03CEDB | 1.93:1 | Fails | Lc -40.7 | Non-text elements, placeholder text |
| Black text on #03CEDB | 10.85:1 | AAA | Lc 67.5 | Content text, not long reading |
| #03CEDB text on white | 1.93:1 | Fails | Lc 36.4 | Non-text elements, placeholder text |
| #03CEDB text on black | 10.85:1 | AAA | Lc -66.1 | 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
#E9F9FB
oklch(97.1% 0.017 205.8)
-
Step 100
100
#CDF2F5
oklch(93.6% 0.039 202.5)
-
Step 200
200
#9EE8EE
oklch(88.5% 0.074 202.3)
-
Step 300
300 (this color)
#03CEDB
oklch(77.6% 0.132 202.9)
-
Step 400
400
#00B6C2
oklch(70.7% 0.12 203.2)
-
Step 500
500
#009CA6
oklch(63.1% 0.107 202.8)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#03CEDB 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) | #BCC5DC | 0.131 |
| Deuteranopia (no green cones) | #A4B3DC | 0.121 |
| Tritanopia (no blue cones) | #00D7D2 | 0.032 |
| Achromatopsia (no color) | #BABABA | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03CEDB
#03CEDB
oklch(77.6% 0.132 202.9)
- #FF938E
#FF938E
oklch(77.6% 0.131 23.3)
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 #03CEDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Turquoise #00CED1 ΔE 0.015
- Aqua Blue #02D8E9 ΔE 0.030
- Medium Turquoise #48D1CC ΔE 0.031
- Vivid Sky Blue #4CC9F0 ΔE 0.045
- Bright Sky Blue #02CCFE ΔE 0.054
- Turquoise #40E0D0 ΔE 0.062
- Topaz #13BBAF ΔE 0.072
- Seafoam Blue #78D1B6 ΔE 0.073
Use #03CEDB 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.