#00BCE3
Closest named color: Deep Sky Blue (#00BFFF). oklch(73.5% 0.134 219.8), rgb(0, 188, 227).
Aa
Black text reads best on this color (9.30:1).
About this color
#00BCE3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.134 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.041 away. Black text reads best on it, at 9.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.30:1 |
| White text | 2.25:1 |
Values
| HEX | #00BCE3 |
| RGB | rgb(0, 188, 227) |
| HSL | hsl(190, 100%, 45%) |
| OKLCH | oklch(73.5% 0.134 219.8) |
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 #00BCE3 | 2.25:1 | Fails | Lc -48.6 | Large or bold text, headings |
| Black text on #00BCE3 | 9.30:1 | AAA | Lc 60.2 | Content text, not long reading |
| #00BCE3 text on white | 2.25:1 | Fails | Lc 43.8 | Non-text elements, placeholder text |
| #00BCE3 text on black | 9.30:1 | AAA | Lc -58.3 | 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
#EEF7FB
oklch(97.1% 0.011 226)
-
Step 100
100
#D9EEF5
oklch(93.6% 0.024 219.7)
-
Step 200
200
#B8E1EE
oklch(88.5% 0.046 219)
-
Step 300
300
#80CEE6
oklch(81% 0.084 219.5)
-
Step 400
400 (this color)
#00BCE3
oklch(73.5% 0.134 219.8)
-
Step 500
500
#0099B9
oklch(63.1% 0.115 219.7)
-
Step 600
600
#00809C
oklch(55.5% 0.101 220.3)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#004A5B
oklch(37.8% 0.069 219.8)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#00BCE3 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) | #A4B7E5 | 0.111 |
| Deuteranopia (no green cones) | #8BA5E3 | 0.098 |
| Tritanopia (no blue cones) | #00C9C9 | 0.061 |
| Achromatopsia (no color) | #ACACAC | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00BCE3
#00BCE3
oklch(73.5% 0.134 219.8)
- #F08A67
#F08A67
oklch(73.6% 0.134 39.6)
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 #00BCE3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.041
- Vivid Sky Blue #4CC9F0 ΔE 0.049
- Turquoise Blue #06B1C4 ΔE 0.049
- Bright Sky Blue #02CCFE ΔE 0.052
- Dark Turquoise #00CED1 ΔE 0.065
- Topaz #13BBAF ΔE 0.077
- Aqua Blue #02D8E9 ΔE 0.078
- Lightblue #7BC8F6 ΔE 0.080
Use #00BCE3 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.