#00BFDE
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(74% 0.131 214.9), rgb(0, 191, 222).
Aa
Black text reads best on this color (9.50:1).
About this color
#00BFDE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.131 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.046 away. Black text reads best on it, at 9.50:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.50:1 |
| White text | 2.20:1 |
Values
| HEX | #00BFDE |
| RGB | rgb(0, 191, 222) |
| HSL | hsl(188, 100%, 44%) |
| OKLCH | oklch(74% 0.131 214.9) |
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 #00BFDE | 2.20:1 | Fails | Lc -47.5 | Large or bold text, headings |
| Black text on #00BFDE | 9.50:1 | AAA | Lc 61.2 | Content text, not long reading |
| #00BFDE text on white | 2.20:1 | Fails | Lc 42.8 | Non-text elements, placeholder text |
| #00BFDE text on black | 9.50:1 | AAA | Lc -59.4 | 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
#B8E1EC
oklch(88.4% 0.045 215.8)
-
Step 300
300
#80CFE2
oklch(81% 0.082 214.8)
-
Step 400
400 (this color)
#00BFDE
oklch(74% 0.131 214.9)
-
Step 500
500
#009AB3
oklch(63.1% 0.111 214.6)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D7F
oklch(49.2% 0.087 214.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A57
oklch(37.6% 0.066 214.5)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#00BFDE 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) | #A9B8E0 | 0.116 |
| Deuteranopia (no green cones) | #91A7DE | 0.104 |
| Tritanopia (no blue cones) | #00CAC9 | 0.051 |
| Achromatopsia (no color) | #AEAEAE | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00BFDE
#00BFDE
oklch(74% 0.131 214.9)
- #F18B71
#F18B71
oklch(74% 0.13 35.2)
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 #00BFDE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.046
- Turquoise Blue #06B1C4 ΔE 0.048
- Deep Sky Blue #00BFFF ΔE 0.049
- Dark Turquoise #00CED1 ΔE 0.052
- Bright Sky Blue #02CCFE ΔE 0.052
- Topaz #13BBAF ΔE 0.068
- Aqua Blue #02D8E9 ΔE 0.069
- Medium Turquoise #48D1CC ΔE 0.070
Use #00BFDE 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.