#63E8E9
Closest named color: Robin's Egg (#6DEDFD). oklch(85.8% 0.116 195.9), rgb(99, 232, 233).
Aa
Black text reads best on this color (14.24:1).
About this color
#63E8E9 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 86%, its chroma 0.116 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg (#6DEDFD), ΔE 0.030 away. Black text reads best on it, at 14.24:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Robin's Egg (#6DEDFD) |
| Black text | 14.24:1 |
| White text | 1.47:1 |
Values
| HEX | #63E8E9 |
| RGB | rgb(99, 232, 233) |
| HSL | hsl(180, 75%, 65%) |
| OKLCH | oklch(85.8% 0.116 195.9) |
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 #63E8E9 | 1.47:1 | Fails | Lc -25.1 | Dividers and decoration only |
| Black text on #63E8E9 | 14.24:1 | AAA | Lc 81.6 | Fine for body text |
| #63E8E9 text on white | 1.47:1 | Fails | Lc 22.1 | Dividers and decoration only |
| #63E8E9 text on black | 14.24:1 | AAA | Lc -81.2 | Fine for body text |
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 200.
-
Step 50
50
#E7FAFA
oklch(97.1% 0.02 196.8)
-
Step 100
100
#CAF3F3
oklch(93.5% 0.042 196.5)
-
Step 200
200 (this color)
#63E8E9
oklch(85.8% 0.116 195.9)
-
Step 300
300
#00DBDD
oklch(80.8% 0.138 195.9)
-
Step 400
400
#00B7B9
oklch(70.6% 0.12 196.2)
-
Step 500
500
#009D9F
oklch(63.1% 0.107 196.4)
-
Step 600
600
#008485
oklch(55.6% 0.095 195.7)
-
Step 700
700
#006F70
oklch(49.1% 0.084 195.9)
-
Step 800
800
#005B5C
oklch(42.7% 0.073 196.1)
-
Step 900
900
#004C4D
oklch(37.8% 0.064 196.3)
-
Step 950
950
#002D2E
oklch(27% 0.046 197.1)
#63E8E9 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) | #DADEE9 | 0.120 |
| Deuteranopia (no green cones) | #C4CEEA | 0.112 |
| Tritanopia (no blue cones) | #00EFE8 | 0.034 |
| Achromatopsia (no color) | #D5D5D5 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63E8E9
#63E8E9
oklch(85.8% 0.116 195.9)
- #FFBCBF
#FFBCBF
oklch(85.7% 0.078 15.8)
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 #63E8E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg #6DEDFD ΔE 0.030
- Bright Light Blue #26F7FD ΔE 0.043
- Turquoise #40E0D0 ΔE 0.045
- Robin Egg Blue #8AF1FE ΔE 0.049
- Bright Aqua #0BF9EA ΔE 0.051
- Robin's Egg Blue #98EFF9 ΔE 0.055
- Bright Cyan #41FDFE ΔE 0.055
- Bright Turquoise #0FFEF9 ΔE 0.058
Use #63E8E9 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.