#63F1E9
Closest named color: Bright Light Blue (#26F7FD). oklch(87.9% 0.122 190), rgb(99, 241, 233).
Aa
Black text reads best on this color (15.28:1).
About this color
#63F1E9 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 88%, its chroma 0.122 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Light Blue (#26F7FD), ΔE 0.032 away. Black text reads best on it, at 15.28:1.
| Hue family | Teals and cyans |
| Lightness | light (88%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Bright Light Blue (#26F7FD) |
| Black text | 15.28:1 |
| White text | 1.37:1 |
Values
| HEX | #63F1E9 |
| RGB | rgb(99, 241, 233) |
| HSL | hsl(177, 84%, 67%) |
| OKLCH | oklch(87.9% 0.122 190) |
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 #63F1E9 | 1.37:1 | Fails | Lc -20.5 | Dividers and decoration only |
| Black text on #63F1E9 | 15.28:1 | AAA | Lc 85.7 | Fine for body text |
| #63F1E9 text on white | 1.37:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #63F1E9 text on black | 15.28:1 | AAA | Lc -85.6 | 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
#E6FAF8
oklch(97% 0.021 189.6)
-
Step 100
100
#C8F4F0
oklch(93.5% 0.045 189.6)
-
Step 200
200 (this color)
#63F1E9
oklch(87.9% 0.122 190)
-
Step 300
300
#00DDD4
oklch(81% 0.14 189.6)
-
Step 400
400
#00B8B1
oklch(70.6% 0.122 190)
-
Step 500
500
#009E98
oklch(63.1% 0.109 190)
-
Step 600
600
#008580
oklch(55.7% 0.096 190.1)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#002E2B
oklch(27.1% 0.047 188)
#63F1E9 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) | #E4E5E9 | 0.130 |
| Deuteranopia (no green cones) | #CED5EA | 0.122 |
| Tritanopia (no blue cones) | #00F7EE | 0.030 |
| Achromatopsia (no color) | #DCDCDC | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63F1E9
#63F1E9
oklch(87.9% 0.122 190)
- #FFC6CD
#FFC6CD
oklch(87.9% 0.066 10.3)
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 #63F1E9, closest first.
No curated palette has a color within ΔE 0.04 of #63F1E9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Light Blue #26F7FD ΔE 0.032
- Bright Aqua #0BF9EA ΔE 0.032
- Robin's Egg #6DEDFD ΔE 0.035
- Bright Cyan #41FDFE ΔE 0.036
- Bright Turquoise #0FFEF9 ΔE 0.039
- Cyan #00FFFF ΔE 0.043
- Robin Egg Blue #8AF1FE ΔE 0.045
- Light Turquoise #7EF4CC ΔE 0.045
Use #63F1E9 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.