#63C3AF
Closest named color: Medium Aquamarine (#66CDAA). oklch(75.3% 0.096 178.2), rgb(99, 195, 175).
Aa
Black text reads best on this color (9.95:1).
About this color
#63C3AF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.096 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.032 away. Black text reads best on it, at 9.95:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 9.95:1 |
| White text | 2.10:1 |
Values
| HEX | #63C3AF |
| RGB | rgb(99, 195, 175) |
| HSL | hsl(168, 44%, 58%) |
| OKLCH | oklch(75.3% 0.096 178.2) |
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 #63C3AF | 2.10:1 | Fails | Lc -45.7 | Large or bold text, headings |
| Black text on #63C3AF | 9.95:1 | AAA | Lc 62.8 | Content text, not long reading |
| #63C3AF text on white | 2.10:1 | Fails | Lc 41.1 | Non-text elements, placeholder text |
| #63C3AF text on black | 9.95:1 | AAA | Lc -61.1 | 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 400.
-
Step 50
50
#F0F7F5
oklch(97% 0.008 177.3)
-
Step 100
100
#DEEEEA
oklch(93.6% 0.018 179.3)
-
Step 200
200
#C3E1D9
oklch(88.6% 0.033 177.7)
-
Step 300
300
#97CEC1
oklch(81% 0.06 178.5)
-
Step 400
400 (this color)
#63C3AF
oklch(75.3% 0.096 178.2)
-
Step 500
500
#00A08A
oklch(63.2% 0.116 178.3)
-
Step 600
600
#008673
oklch(55.5% 0.102 178.1)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#004D42
oklch(37.6% 0.069 179)
-
Step 950
950
#002E26
oklch(26.9% 0.05 177.5)
#63C3AF 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) | #BCB9AE | 0.101 |
| Deuteranopia (no green cones) | #ADAEB1 | 0.097 |
| Tritanopia (no blue cones) | #37C5BD | 0.030 |
| Achromatopsia (no color) | #B2B2B2 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63C3AF
#63C3AF
oklch(75.3% 0.096 178.2)
- #E195AE
#E195AE
oklch(75.3% 0.096 358.4)
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 #63C3AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.032
- Pale Teal #82CBB2 ΔE 0.039
- Seafoam Blue #78D1B6 ΔE 0.045
- Medium Turquoise #48D1CC ΔE 0.046
- Topaz #13BBAF ΔE 0.049
- Dark Sea Green #8FBC8F ΔE 0.053
- Dark Turquoise #00CED1 ΔE 0.054
- Muted Teal #90B494 ΔE 0.057
Use #63C3AF 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.