#63C1BB
Closest named color: Medium Turquoise (#48D1CC). oklch(75.2% 0.09 189.9), rgb(99, 193, 187).
Aa
Black text reads best on this color (9.87:1).
About this color
#63C1BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.090 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Turquoise (#48D1CC), ΔE 0.044 away. Black text reads best on it, at 9.87:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Medium Turquoise (#48D1CC) |
| Black text | 9.87:1 |
| White text | 2.12:1 |
Values
| HEX | #63C1BB |
| RGB | rgb(99, 193, 187) |
| HSL | hsl(176, 43%, 57%) |
| OKLCH | oklch(75.2% 0.09 189.9) |
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 #63C1BB | 2.12:1 | Fails | Lc -46.2 | Large or bold text, headings |
| Black text on #63C1BB | 9.87:1 | AAA | Lc 62.4 | Content text, not long reading |
| #63C1BB text on white | 2.12:1 | Fails | Lc 41.5 | Non-text elements, placeholder text |
| #63C1BB text on black | 9.87:1 | AAA | Lc -60.7 | 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
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DEEEEC
oklch(93.7% 0.017 187.9)
-
Step 200
200
#C3E0DE
oklch(88.5% 0.031 191.5)
-
Step 300
300
#97CDC8
oklch(80.9% 0.056 189)
-
Step 400
400 (this color)
#63C1BB
oklch(75.2% 0.09 189.9)
-
Step 500
500
#009E98
oklch(63.1% 0.109 190)
-
Step 600
600
#008580
oklch(55.7% 0.096 190.1)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#002E2B
oklch(27.1% 0.047 188)
#63C1BB 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) | #B8B9BB | 0.095 |
| Deuteranopia (no green cones) | #A8ADBC | 0.089 |
| Tritanopia (no blue cones) | #2EC5BF | 0.030 |
| Achromatopsia (no color) | #B2B2B2 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63C1BB
#63C1BB
oklch(75.2% 0.09 189.9)
- #E197A1
#E197A1
oklch(75.2% 0.09 10.6)
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 #63C1BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Turquoise #48D1CC ΔE 0.044
- Pale Teal #82CBB2 ΔE 0.046
- Dark Turquoise #00CED1 ΔE 0.048
- Medium Aquamarine #66CDAA ΔE 0.048
- Topaz #13BBAF ΔE 0.050
- Seafoam Blue #78D1B6 ΔE 0.054
- Muted Teal #90B494 ΔE 0.063
- Light Sea Green #20B2AA ΔE 0.065
Use #63C1BB 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.