#63E0CF
Closest named color: Turquoise (#40E0D0). oklch(83.1% 0.114 183.3), rgb(99, 224, 207).
Aa
Black text reads best on this color (13.09:1).
About this color
#63E0CF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.114 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise (#40E0D0), ΔE 0.019 away. Black text reads best on it, at 13.09:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Turquoise (#40E0D0) |
| Black text | 13.09:1 |
| White text | 1.60:1 |
Values
| HEX | #63E0CF |
| RGB | rgb(99, 224, 207) |
| HSL | hsl(172, 67%, 63%) |
| OKLCH | oklch(83.1% 0.114 183.3) |
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 #63E0CF | 1.60:1 | Fails | Lc -30.4 | Non-text elements, placeholder text |
| Black text on #63E0CF | 13.09:1 | AAA | Lc 76.9 | Fine for body text |
| #63E0CF text on white | 1.60:1 | Fails | Lc 26.9 | Dividers and decoration only |
| #63E0CF text on black | 13.09:1 | AAA | Lc -76.0 | 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 300.
-
Step 50
50
#EBF9F6
oklch(97.1% 0.015 181.8)
-
Step 100
100
#D3F2EC
oklch(93.7% 0.033 182.6)
-
Step 200
200
#AAE7DD
oklch(88.4% 0.063 183.6)
-
Step 300
300 (this color)
#63E0CF
oklch(83.1% 0.114 183.3)
-
Step 400
400
#00B9A8
oklch(70.6% 0.125 183.4)
-
Step 500
500
#009F90
oklch(63.1% 0.112 183.2)
-
Step 600
600
#008679
oklch(55.7% 0.099 183.1)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#63E0CF 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) | #D6D5CE | 0.120 |
| Deuteranopia (no green cones) | #C3C6D1 | 0.116 |
| Tritanopia (no blue cones) | #00E4DB | 0.033 |
| Achromatopsia (no color) | #CCCCCC | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63E0CF
#63E0CF
oklch(83.1% 0.114 183.3)
- #FFADC1
#FFADC1
oklch(83.2% 0.099 3.5)
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 #63E0CF, closest first.
No curated palette has a color within ΔE 0.04 of #63E0CF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise #40E0D0 ΔE 0.019
- Light Teal #90E4C1 ΔE 0.044
- Seafoam Blue #78D1B6 ΔE 0.044
- Medium Turquoise #48D1CC ΔE 0.048
- Aqua Marine #2EE8BB ΔE 0.049
- Tiffany Blue #94D2BD ΔE 0.050
- Aqua Blue #02D8E9 ΔE 0.059
- Pale Teal #82CBB2 ΔE 0.059
Use #63E0CF 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.