#03BEE0
Closest named color: Deep Sky Blue (#00BFFF). oklch(73.9% 0.132 216.8), rgb(3, 190, 224).
Aa
Black text reads best on this color (9.44:1).
About this color
#03BEE0 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.132 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.046 away. Black text reads best on it, at 9.44:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.44:1 |
| White text | 2.22:1 |
Values
| HEX | #03BEE0 |
| RGB | rgb(3, 190, 224) |
| HSL | hsl(189, 97%, 45%) |
| OKLCH | oklch(73.9% 0.132 216.8) |
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 #03BEE0 | 2.22:1 | Fails | Lc -47.9 | Large or bold text, headings |
| Black text on #03BEE0 | 9.44:1 | AAA | Lc 60.8 | Content text, not long reading |
| #03BEE0 text on white | 2.22:1 | Fails | Lc 43.1 | Non-text elements, placeholder text |
| #03BEE0 text on black | 9.44:1 | AAA | Lc -59.1 | 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
#D9EEF4
oklch(93.5% 0.024 216.7)
-
Step 200
200
#B8E1ED
oklch(88.4% 0.046 217.5)
-
Step 300
300
#80CEE3
oklch(80.8% 0.082 216.8)
-
Step 400
400 (this color)
#03BEE0
oklch(73.9% 0.132 216.8)
-
Step 500
500
#0099B5
oklch(63% 0.112 216.9)
-
Step 600
600
#008199
oklch(55.6% 0.099 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#03BEE0 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) | #A8B8E2 | 0.115 |
| Deuteranopia (no green cones) | #8FA6E0 | 0.102 |
| Tritanopia (no blue cones) | #00CAC9 | 0.055 |
| Achromatopsia (no color) | #AEAEAE | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03BEE0
#03BEE0
oklch(73.9% 0.132 216.8)
- #F18B6E
#F18B6E
oklch(74% 0.131 36.7)
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 #03BEE0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.046
- Vivid Sky Blue #4CC9F0 ΔE 0.046
- Turquoise Blue #06B1C4 ΔE 0.048
- Bright Sky Blue #02CCFE ΔE 0.052
- Dark Turquoise #00CED1 ΔE 0.057
- Topaz #13BBAF ΔE 0.071
- Aqua Blue #02D8E9 ΔE 0.072
- Medium Turquoise #48D1CC ΔE 0.074
Use #03BEE0 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.