#63B6AA
Closest named color: Topaz (#13BBAF). oklch(72% 0.083 183.5), rgb(99, 182, 170).
Aa
Black text reads best on this color (8.80:1).
About this color
#63B6AA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.083 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.040 away. Black text reads best on it, at 8.80:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.80:1 |
| White text | 2.38:1 |
Values
| HEX | #63B6AA |
| RGB | rgb(99, 182, 170) |
| HSL | hsl(171, 36%, 55%) |
| OKLCH | oklch(72% 0.083 183.5) |
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 #63B6AA | 2.38:1 | Fails | Lc -51.8 | Large or bold text, headings |
| Black text on #63B6AA | 8.80:1 | AAA | Lc 57.1 | Large or bold text, headings |
| #63B6AA text on white | 2.38:1 | Fails | Lc 46.9 | Large or bold text, headings |
| #63B6AA text on black | 8.80:1 | AAA | Lc -55.2 | 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
#DFEDEB
oklch(93.5% 0.015 186.7)
-
Step 200
200
#C5E0DB
oklch(88.5% 0.029 183.3)
-
Step 300
300
#9BCCC4
oklch(80.8% 0.052 183.9)
-
Step 400
400 (this color)
#63B6AA
oklch(72% 0.083 183.5)
-
Step 500
500
#1C9E90
oklch(63.1% 0.107 183.5)
-
Step 600
600
#008679
oklch(55.7% 0.099 183.1)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#052D29
oklch(26.9% 0.044 185.1)
#63B6AA 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) | #AFAEAA | 0.089 |
| Deuteranopia (no green cones) | #A1A3AB | 0.085 |
| Tritanopia (no blue cones) | #3EB9B2 | 0.026 |
| Achromatopsia (no color) | #A8A8A8 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B6AA
#63B6AA
oklch(72% 0.083 183.5)
- #D28F9F
#D28F9F
oklch(72.1% 0.084 3.7)
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 #63B6AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.040
- Greeny Blue #42B395 ΔE 0.043
- Light Sea Green #20B2AA ΔE 0.043
- Muted Teal #90B494 ΔE 0.051
- Turquoise Blue #06B1C4 ΔE 0.061
- Pewter #96A8A1 ΔE 0.062
- Dark Sea Green #8FBC8F ΔE 0.062
- Tea #65AB7C ΔE 0.063
Use #63B6AA 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.