#63CEC2
Closest named color: Medium Turquoise (#48D1CC). oklch(78.5% 0.101 185.6), rgb(99, 206, 194).
Aa
Black text reads best on this color (11.13:1).
About this color
#63CEC2 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 78%, its chroma 0.101 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Turquoise (#48D1CC), ΔE 0.019 away. Black text reads best on it, at 11.13:1.
| Hue family | Teals and cyans |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Medium Turquoise (#48D1CC) |
| Black text | 11.13:1 |
| White text | 1.88:1 |
Values
| HEX | #63CEC2 |
| RGB | rgb(99, 206, 194) |
| HSL | hsl(173, 52%, 60%) |
| OKLCH | oklch(78.5% 0.101 185.6) |
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 #63CEC2 | 1.88:1 | Fails | Lc -39.8 | Non-text elements, placeholder text |
| Black text on #63CEC2 | 11.13:1 | AAA | Lc 68.3 | Content text, not long reading |
| #63CEC2 text on white | 1.88:1 | Fails | Lc 35.6 | Non-text elements, placeholder text |
| #63CEC2 text on black | 11.13:1 | AAA | Lc -66.9 | Content text, not long reading |
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
#ECF9F7
oklch(97.2% 0.014 186)
-
Step 100
100
#D5F1EC
oklch(93.6% 0.03 183.8)
-
Step 200
200
#B0E6DE
oklch(88.5% 0.056 185)
-
Step 300
300 (this color)
#63CEC2
oklch(78.5% 0.101 185.6)
-
Step 400
400
#00B9AC
oklch(70.7% 0.124 186)
-
Step 500
500
#009F93
oklch(63.2% 0.111 185.4)
-
Step 600
600
#00857B
oklch(55.5% 0.097 185.6)
-
Step 700
700
#007068
oklch(49.1% 0.086 186.2)
-
Step 800
800
#005C55
oklch(42.7% 0.075 185.9)
-
Step 900
900
#004D47
oklch(37.8% 0.066 185.9)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#63CEC2 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) | #C5C4C2 | 0.107 |
| Deuteranopia (no green cones) | #B4B7C3 | 0.102 |
| Tritanopia (no blue cones) | #1ED2CA | 0.032 |
| Achromatopsia (no color) | #BDBDBD | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63CEC2
#63CEC2
oklch(78.5% 0.101 185.6)
- #F09EAF
#F09EAF
oklch(78.5% 0.1 6.1)
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 #63CEC2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Turquoise #48D1CC ΔE 0.019
- Seafoam Blue #78D1B6 ΔE 0.027
- Pale Teal #82CBB2 ΔE 0.031
- Medium Aquamarine #66CDAA ΔE 0.033
- Dark Turquoise #00CED1 ΔE 0.040
- Turquoise #40E0D0 ΔE 0.048
- Tiffany Blue #94D2BD ΔE 0.048
- Aqua Blue #02D8E9 ΔE 0.057
Use #63CEC2 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.