#63C1CA
Closest named color: Medium Turquoise (#48D1CC). oklch(75.7% 0.09 203.7), rgb(99, 193, 202).
Aa
Black text reads best on this color (10.01:1).
About this color
#63C1CA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 76%, its chroma 0.090 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Turquoise (#48D1CC), ΔE 0.045 away. Black text reads best on it, at 10.01:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Medium Turquoise (#48D1CC) |
| Black text | 10.01:1 |
| White text | 2.09:1 |
Values
| HEX | #63C1CA |
| RGB | rgb(99, 193, 202) |
| HSL | hsl(185, 49%, 59%) |
| OKLCH | oklch(75.7% 0.09 203.7) |
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 #63C1CA | 2.09:1 | Fails | Lc -45.5 | Large or bold text, headings |
| Black text on #63C1CA | 10.01:1 | AAA | Lc 63.1 | Content text, not long reading |
| #63C1CA text on white | 2.09:1 | Fails | Lc 40.9 | Non-text elements, placeholder text |
| #63C1CA text on black | 10.01:1 | AAA | Lc -61.4 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DEEDEF
oklch(93.6% 0.016 206.4)
-
Step 200
200
#C2E0E2
oklch(88.5% 0.032 201.5)
-
Step 300
300
#96CCD1
oklch(81% 0.056 203.3)
-
Step 400
400 (this color)
#63C1CA
oklch(75.7% 0.09 203.7)
-
Step 500
500
#009CA7
oklch(63.1% 0.108 203.6)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#63C1CA 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) | #B5BACB | 0.091 |
| Deuteranopia (no green cones) | #A4AECA | 0.083 |
| Tritanopia (no blue cones) | #1AC7C3 | 0.042 |
| Achromatopsia (no color) | #B3B3B3 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63C1CA
#63C1CA
oklch(75.7% 0.09 203.7)
- #E49A95
#E49A95
oklch(75.8% 0.09 23.7)
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 #63C1CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Turquoise #48D1CC ΔE 0.045
- Dark Turquoise #00CED1 ΔE 0.046
- Vivid Sky Blue #4CC9F0 ΔE 0.053
- Pale Teal #82CBB2 ΔE 0.058
- Light Cornflower Blue #98C1D9 ΔE 0.060
- Topaz #13BBAF ΔE 0.062
- Light Grey Blue #9DBCD4 ΔE 0.064
- Seafoam Blue #78D1B6 ΔE 0.064
Use #63C1CA 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.