#63D0BC
Closest named color: Seafoam Blue (#78D1B6). oklch(78.8% 0.105 179.8), rgb(99, 208, 188).
Aa
Black text reads best on this color (11.27:1).
About this color
#63D0BC is a light, moderately saturated teal or cyan. In OKLCH its lightness is 79%, its chroma 0.105 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Seafoam Blue (#78D1B6), ΔE 0.019 away. Black text reads best on it, at 11.27:1.
| Hue family | Teals and cyans |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Seafoam Blue (#78D1B6) |
| Black text | 11.27:1 |
| White text | 1.86:1 |
Values
| HEX | #63D0BC |
| RGB | rgb(99, 208, 188) |
| HSL | hsl(169, 54%, 60%) |
| OKLCH | oklch(78.8% 0.105 179.8) |
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 #63D0BC | 1.86:1 | Fails | Lc -39.1 | Non-text elements, placeholder text |
| Black text on #63D0BC | 11.27:1 | AAA | Lc 69.0 | Content text, not long reading |
| #63D0BC text on white | 1.86:1 | Fails | Lc 34.9 | Non-text elements, placeholder text |
| #63D0BC text on black | 11.27:1 | AAA | Lc -67.6 | 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
#ECF9F6
oklch(97.2% 0.014 180.7)
-
Step 100
100
#D5F1EA
oklch(93.6% 0.031 178.9)
-
Step 200
200
#B0E6DA
oklch(88.4% 0.058 179.7)
-
Step 300
300 (this color)
#63D0BC
oklch(78.8% 0.105 179.8)
-
Step 400
400
#00BAA3
oklch(70.7% 0.128 179.7)
-
Step 500
500
#00A08C
oklch(63.2% 0.115 179.7)
-
Step 600
600
#008675
oklch(55.5% 0.101 179.7)
-
Step 700
700
#007162
oklch(49.1% 0.09 179.3)
-
Step 800
800
#005D50
oklch(42.8% 0.078 178.9)
-
Step 900
900
#004D43
oklch(37.7% 0.068 180.3)
-
Step 950
950
#002E27
oklch(27% 0.049 179.5)
#63D0BC 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) | #C8C5BB | 0.111 |
| Deuteranopia (no green cones) | #B7B9BE | 0.105 |
| Tritanopia (no blue cones) | #25D3CA | 0.032 |
| Achromatopsia (no color) | #BEBEBE | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63D0BC
#63D0BC
oklch(78.8% 0.105 179.8)
- #F29DB7
#F29DB7
oklch(78.8% 0.106 360)
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 #63D0BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seafoam Blue #78D1B6 ΔE 0.019
- Medium Aquamarine #66CDAA ΔE 0.024
- Medium Turquoise #48D1CC ΔE 0.025
- Pale Teal #82CBB2 ΔE 0.028
- Turquoise #40E0D0 ΔE 0.044
- Dark Turquoise #00CED1 ΔE 0.046
- Tiffany Blue #94D2BD ΔE 0.046
- Emerald #06D6A0 ΔE 0.063
Use #63D0BC 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.