#63BDB6
Closest named color: Topaz (#13BBAF). oklch(74.1% 0.087 188.8), rgb(99, 189, 182).
Aa
Black text reads best on this color (9.48:1).
About this color
#63BDB6 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.087 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.044 away. Black text reads best on it, at 9.48:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.48:1 |
| White text | 2.21:1 |
Values
| HEX | #63BDB6 |
| RGB | rgb(99, 189, 182) |
| HSL | hsl(175, 41%, 56%) |
| OKLCH | oklch(74.1% 0.087 188.8) |
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 #63BDB6 | 2.21:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #63BDB6 | 9.48:1 | AAA | Lc 60.5 | Content text, not long reading |
| #63BDB6 text on white | 2.21:1 | Fails | Lc 43.4 | Non-text elements, placeholder text |
| #63BDB6 text on black | 9.48:1 | AAA | Lc -58.7 | 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
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DFEDEC
oklch(93.5% 0.015 191.8)
-
Step 200
200
#C4E0DD
oklch(88.5% 0.03 188.8)
-
Step 300
300
#98CCC8
oklch(80.8% 0.054 190.2)
-
Step 400
400 (this color)
#63BDB6
oklch(74.1% 0.087 188.8)
-
Step 500
500
#009E97
oklch(63.1% 0.109 189.2)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706A
oklch(49.1% 0.085 188.3)
-
Step 800
800
#005C57
oklch(42.8% 0.074 188.4)
-
Step 900
900
#004C48
oklch(37.6% 0.065 188.7)
-
Step 950
950
#012D2B
oklch(26.9% 0.046 190.1)
#63BDB6 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) | #B4B5B6 | 0.092 |
| Deuteranopia (no green cones) | #A5A9B7 | 0.088 |
| Tritanopia (no blue cones) | #34C1BB | 0.029 |
| Achromatopsia (no color) | #AEAEAE | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63BDB6
#63BDB6
oklch(74.1% 0.087 188.8)
- #DC94A0
#DC94A0
oklch(74.1% 0.088 8.5)
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 #63BDB6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.044
- Pale Teal #82CBB2 ΔE 0.054
- Medium Aquamarine #66CDAA ΔE 0.054
- Medium Turquoise #48D1CC ΔE 0.055
- Dark Turquoise #00CED1 ΔE 0.056
- Light Sea Green #20B2AA ΔE 0.056
- Muted Teal #90B494 ΔE 0.058
- Greeny Blue #42B395 ΔE 0.060
Use #63BDB6 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.