#03B6D1
Closest named color: Turquoise Blue (#06B1C4). oklch(71.3% 0.125 213.3), rgb(3, 182, 209).
Aa
Black text reads best on this color (8.61:1).
About this color
#03B6D1 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.125 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.021 away. Black text reads best on it, at 8.61:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.61:1 |
| White text | 2.43:1 |
Values
| HEX | #03B6D1 |
| RGB | rgb(3, 182, 209) |
| HSL | hsl(188, 97%, 42%) |
| OKLCH | oklch(71.3% 0.125 213.3) |
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 #03B6D1 | 2.43:1 | Fails | Lc -52.3 | Large or bold text, headings |
| Black text on #03B6D1 | 8.61:1 | AAA | Lc 56.7 | Large or bold text, headings |
| #03B6D1 text on white | 2.43:1 | Fails | Lc 47.3 | Large or bold text, headings |
| #03B6D1 text on black | 8.61:1 | AAA | Lc -54.7 | Large or bold text, headings |
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
#EEF7FA
oklch(97% 0.01 219.6)
-
Step 100
100
#DAEEF3
oklch(93.6% 0.022 214.4)
-
Step 200
200
#BAE1EA
oklch(88.5% 0.043 213.3)
-
Step 300
300
#83CEDF
oklch(80.8% 0.078 213.7)
-
Step 400
400 (this color)
#03B6D1
oklch(71.3% 0.125 213.3)
-
Step 500
500
#009AB1
oklch(63% 0.11 213.1)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A57
oklch(37.6% 0.066 214.5)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#03B6D1 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) | #A2AFD3 | 0.113 |
| Deuteranopia (no green cones) | #8B9FD1 | 0.102 |
| Tritanopia (no blue cones) | #00C0BE | 0.046 |
| Achromatopsia (no color) | #A6A6A6 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03B6D1
#03B6D1
oklch(71.3% 0.125 213.3)
- #E5846F
#E5846F
oklch(71.3% 0.124 33.2)
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 #03B6D1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.021
- Light Sea Green #20B2AA ΔE 0.056
- Topaz #13BBAF ΔE 0.057
- Deep Sky Blue #00BFFF ΔE 0.067
- Dark Turquoise #00CED1 ΔE 0.070
- Vivid Sky Blue #4CC9F0 ΔE 0.072
- Greyblue #77A1B5 ΔE 0.079
- Bright Sky Blue #02CCFE ΔE 0.079
Use #03B6D1 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.