#63B99D
Closest named color: Greeny Blue (#42B395). oklch(72.4% 0.094 170.3), rgb(99, 185, 157).
Aa
Black text reads best on this color (8.95:1).
About this color
#63B99D is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.094 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.034 away. Black text reads best on it, at 8.95:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.95:1 |
| White text | 2.34:1 |
Values
| HEX | #63B99D |
| RGB | rgb(99, 185, 157) |
| HSL | hsl(160, 38%, 56%) |
| OKLCH | oklch(72.4% 0.094 170.3) |
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 #63B99D | 2.34:1 | Fails | Lc -51.0 | Large or bold text, headings |
| Black text on #63B99D | 8.95:1 | AAA | Lc 57.9 | Large or bold text, headings |
| #63B99D text on white | 2.34:1 | Fails | Lc 46.1 | Large or bold text, headings |
| #63B99D text on black | 8.95:1 | AAA | Lc -56.0 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#DFEEE8
oklch(93.6% 0.018 170.1)
-
Step 200
200
#C5E1D6
oklch(88.6% 0.033 169.9)
-
Step 300
300
#9BCDBB
oklch(80.8% 0.058 170.7)
-
Step 400
400 (this color)
#63B99D
oklch(72.4% 0.094 170.3)
-
Step 500
500
#17A07F
oklch(63% 0.119 170.7)
-
Step 600
600
#00876A
oklch(55.5% 0.109 170.8)
-
Step 700
700
#007258
oklch(49.1% 0.097 169.9)
-
Step 800
800
#005D48
oklch(42.6% 0.084 170.6)
-
Step 900
900
#004E3C
oklch(37.7% 0.074 170.6)
-
Step 950
950
#042E23
oklch(27% 0.049 170.9)
#63B99D 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) | #B5AF9C | 0.097 |
| Deuteranopia (no green cones) | #A7A59F | 0.093 |
| Tritanopia (no blue cones) | #45BAB1 | 0.032 |
| Achromatopsia (no color) | #A9A9A9 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B99D
#63B99D
oklch(72.4% 0.094 170.3)
- #D38DAE
#D38DAE
oklch(72.3% 0.095 349.9)
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 #63B99D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.034
- Topaz #13BBAF ΔE 0.043
- Muted Teal #90B494 ΔE 0.046
- Dark Sea Green #8FBC8F ΔE 0.049
- Tea #65AB7C ΔE 0.051
- Light Sea Green #20B2AA ΔE 0.051
- Faded Green #7BB274 ΔE 0.052
- Sage Green #88B378 ΔE 0.053
Use #63B99D 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.