#63C4AE
Closest named color: Medium Aquamarine (#66CDAA). oklch(75.5% 0.098 176.8), rgb(99, 196, 174).
Aa
Black text reads best on this color (10.03:1).
About this color
#63C4AE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 76%, its chroma 0.098 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.029 away. Black text reads best on it, at 10.03:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.03:1 |
| White text | 2.09:1 |
Values
| HEX | #63C4AE |
| RGB | rgb(99, 196, 174) |
| HSL | hsl(166, 45%, 58%) |
| OKLCH | oklch(75.5% 0.098 176.8) |
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 #63C4AE | 2.09:1 | Fails | Lc -45.3 | Large or bold text, headings |
| Black text on #63C4AE | 10.03:1 | AAA | Lc 63.2 | Content text, not long reading |
| #63C4AE text on white | 2.09:1 | Fails | Lc 40.7 | Non-text elements, placeholder text |
| #63C4AE text on black | 10.03:1 | AAA | Lc -61.5 | 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
#DEEEE9
oklch(93.6% 0.018 175.3)
-
Step 200
200
#C3E1D8
oklch(88.5% 0.034 175.5)
-
Step 300
300
#96CEC0
oklch(80.9% 0.061 177.5)
-
Step 400
400 (this color)
#63C4AE
oklch(75.5% 0.098 176.8)
-
Step 500
500
#00A088
oklch(63.1% 0.117 177)
-
Step 600
600
#008772
oklch(55.7% 0.104 176.6)
-
Step 700
700
#00715F
oklch(49% 0.091 176.5)
-
Step 800
800
#005D4E
oklch(42.8% 0.079 176.7)
-
Step 900
900
#004D41
oklch(37.6% 0.069 177.7)
-
Step 950
950
#002E26
oklch(26.9% 0.05 177.5)
#63C4AE 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) | #BEBAAD | 0.103 |
| Deuteranopia (no green cones) | #AEAFB0 | 0.097 |
| Tritanopia (no blue cones) | #37C6BD | 0.030 |
| Achromatopsia (no color) | #B3B3B3 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63C4AE
#63C4AE
oklch(75.5% 0.098 176.8)
- #E295B1
#E295B1
oklch(75.5% 0.099 356.3)
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 #63C4AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.029
- Pale Teal #82CBB2 ΔE 0.037
- Seafoam Blue #78D1B6 ΔE 0.043
- Medium Turquoise #48D1CC ΔE 0.046
- Topaz #13BBAF ΔE 0.051
- Dark Sea Green #8FBC8F ΔE 0.052
- Dark Turquoise #00CED1 ΔE 0.054
- Muted Teal #90B494 ΔE 0.058
Use #63C4AE 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.