#63D3BE
Closest named color: Seafoam Blue (#78D1B6). oklch(79.6% 0.107 179.4), rgb(99, 211, 190).
Aa
Black text reads best on this color (11.59:1).
About this color
#63D3BE is a light, moderately saturated teal or cyan. In OKLCH its lightness is 80%, its chroma 0.107 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Seafoam Blue (#78D1B6), ΔE 0.018 away. Black text reads best on it, at 11.59:1.
| Hue family | Teals and cyans |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Seafoam Blue (#78D1B6) |
| Black text | 11.59:1 |
| White text | 1.81:1 |
Values
| HEX | #63D3BE |
| RGB | rgb(99, 211, 190) |
| HSL | hsl(169, 56%, 61%) |
| OKLCH | oklch(79.6% 0.107 179.4) |
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 #63D3BE | 1.81:1 | Fails | Lc -37.6 | Non-text elements, placeholder text |
| Black text on #63D3BE | 11.59:1 | AAA | Lc 70.4 | Content text, not long reading |
| #63D3BE text on white | 1.81:1 | Fails | Lc 33.5 | Non-text elements, placeholder text |
| #63D3BE text on black | 11.59:1 | AAA | Lc -69.1 | 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
#AFE7DA
oklch(88.6% 0.06 179)
-
Step 300
300 (this color)
#63D3BE
oklch(79.6% 0.107 179.4)
-
Step 400
400
#00BAA3
oklch(70.7% 0.128 179.7)
-
Step 500
500
#00A08B
oklch(63.2% 0.115 179)
-
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
#004D42
oklch(37.6% 0.069 179)
-
Step 950
950
#002E27
oklch(27% 0.049 179.5)
#63D3BE 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) | #CBC8BD | 0.113 |
| Deuteranopia (no green cones) | #BABBC0 | 0.109 |
| Tritanopia (no blue cones) | #20D6CD | 0.033 |
| Achromatopsia (no color) | #C0C0C0 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63D3BE
#63D3BE
oklch(79.6% 0.107 179.4)
- #F59FBA
#F59FBA
oklch(79.5% 0.107 359.5)
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 #63D3BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seafoam Blue #78D1B6 ΔE 0.018
- Medium Turquoise #48D1CC ΔE 0.027
- Medium Aquamarine #66CDAA ΔE 0.028
- Pale Teal #82CBB2 ΔE 0.031
- Turquoise #40E0D0 ΔE 0.037
- Tiffany Blue #94D2BD ΔE 0.044
- Dark Turquoise #00CED1 ΔE 0.049
- Aqua Blue #02D8E9 ΔE 0.062
Use #63D3BE 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.