#63CFD5
Closest named color: Medium Turquoise (#48D1CC). oklch(79.3% 0.099 200.2), rgb(99, 207, 213).
Aa
Black text reads best on this color (11.41:1).
About this color
#63CFD5 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 79%, its chroma 0.099 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Turquoise (#48D1CC), ΔE 0.024 away. Black text reads best on it, at 11.41:1.
| Hue family | Teals and cyans |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Medium Turquoise (#48D1CC) |
| Black text | 11.41:1 |
| White text | 1.83:1 |
Values
| HEX | #63CFD5 |
| RGB | rgb(99, 207, 213) |
| HSL | hsl(183, 58%, 61%) |
| OKLCH | oklch(79.3% 0.099 200.2) |
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 #63CFD5 | 1.83:1 | Fails | Lc -38.4 | Non-text elements, placeholder text |
| Black text on #63CFD5 | 11.41:1 | AAA | Lc 69.6 | Content text, not long reading |
| #63CFD5 text on white | 1.83:1 | Fails | Lc 34.3 | Non-text elements, placeholder text |
| #63CFD5 text on black | 11.41:1 | AAA | Lc -68.3 | 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
#ECF8F9
oklch(97% 0.013 202.9)
-
Step 100
100
#D5F0F1
oklch(93.6% 0.028 199.4)
-
Step 200
200
#AFE5E8
oklch(88.6% 0.055 200.5)
-
Step 300
300 (this color)
#63CFD5
oklch(79.3% 0.099 200.2)
-
Step 400
400
#00B6BE
oklch(70.6% 0.12 200.4)
-
Step 500
500
#009CA3
oklch(63% 0.107 200.4)
-
Step 600
600
#008389
oklch(55.5% 0.094 200.5)
-
Step 700
700
#006F74
oklch(49.2% 0.084 200.3)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004C4F
oklch(37.8% 0.064 199.4)
-
Step 950
950
#002D2F
oklch(27% 0.046 199.4)
#63CFD5 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) | #C2C7D6 | 0.102 |
| Deuteranopia (no green cones) | #AFB9D6 | 0.094 |
| Tritanopia (no blue cones) | #00D6D1 | 0.040 |
| Achromatopsia (no color) | #BFBFBF | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63CFD5
#63CFD5
oklch(79.3% 0.099 200.2)
- #F5A2A1
#F5A2A1
oklch(79.4% 0.099 20.3)
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 #63CFD5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Turquoise #48D1CC ΔE 0.024
- Dark Turquoise #00CED1 ΔE 0.039
- Aqua Blue #02D8E9 ΔE 0.041
- Seafoam Blue #78D1B6 ΔE 0.047
- Sky Blue #87CEEB ΔE 0.048
- Vivid Sky Blue #4CC9F0 ΔE 0.049
- Pale Teal #82CBB2 ΔE 0.050
- Turquoise #40E0D0 ΔE 0.052
Use #63CFD5 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.