#63B4AE
Closest named color: Light Sea Green (#20B2AA). oklch(71.7% 0.08 189.3), rgb(99, 180, 174).
Aa
Black text reads best on this color (8.67:1).
About this color
#63B4AE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.080 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.042 away. Black text reads best on it, at 8.67:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 8.67:1 |
| White text | 2.42:1 |
Values
| HEX | #63B4AE |
| RGB | rgb(99, 180, 174) |
| HSL | hsl(176, 35%, 55%) |
| OKLCH | oklch(71.7% 0.08 189.3) |
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 #63B4AE | 2.42:1 | Fails | Lc -52.5 | Large or bold text, headings |
| Black text on #63B4AE | 8.67:1 | AAA | Lc 56.5 | Large or bold text, headings |
| #63B4AE text on white | 2.42:1 | Fails | Lc 47.5 | Large or bold text, headings |
| #63B4AE text on black | 8.67:1 | AAA | Lc -54.5 | Large or bold text, headings |
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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E0EDEC
oklch(93.6% 0.014 191.4)
-
Step 200
200
#C5DFDD
oklch(88.4% 0.028 191)
-
Step 300
300
#9CCCC7
oklch(81% 0.051 188.3)
-
Step 400
400 (this color)
#63B4AE
oklch(71.7% 0.08 189.3)
-
Step 500
500
#209D96
oklch(63.1% 0.103 189)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C57
oklch(42.8% 0.074 188.4)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#062D2B
oklch(27% 0.042 189.9)
#63B4AE 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) | #ACACAE | 0.085 |
| Deuteranopia (no green cones) | #9EA2AF | 0.080 |
| Tritanopia (no blue cones) | #3DB8B2 | 0.026 |
| Achromatopsia (no color) | #A6A6A6 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B4AE
#63B4AE
oklch(71.7% 0.08 189.3)
- #D08F99
#D08F99
oklch(71.7% 0.08 9.1)
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 #63B4AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.042
- Topaz #13BBAF ΔE 0.043
- Greeny Blue #42B395 ΔE 0.048
- Turquoise Blue #06B1C4 ΔE 0.055
- Muted Teal #90B494 ΔE 0.056
- Bluegrey #85A3B2 ΔE 0.059
- Pewter #96A8A1 ΔE 0.059
- Greyblue #77A1B5 ΔE 0.060
Use #63B4AE 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.