#63AF9F
Closest named color: Greeny Blue (#42B395). oklch(70% 0.08 178.7), rgb(99, 175, 159).
Aa
Black text reads best on this color (8.16:1).
About this color
#63AF9F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.080 and its hue 179°. 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 8.16:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.16:1 |
| White text | 2.57:1 |
Values
| HEX | #63AF9F |
| RGB | rgb(99, 175, 159) |
| HSL | hsl(167, 32%, 54%) |
| OKLCH | oklch(70% 0.08 178.7) |
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 #63AF9F | 2.57:1 | Fails | Lc -55.3 | Large or bold text, headings |
| Black text on #63AF9F | 8.16:1 | AAA | Lc 53.8 | Large or bold text, headings |
| #63AF9F text on white | 2.57:1 | Fails | Lc 50.2 | Large or bold text, headings |
| #63AF9F text on black | 8.16:1 | AAA | Lc -51.7 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EDEA
oklch(93.6% 0.014 180.7)
-
Step 200
200
#C7DFD9
oklch(88.4% 0.027 179)
-
Step 300
300
#9ECCC1
oklch(80.9% 0.051 178.7)
-
Step 400
400 (this color)
#63AF9F
oklch(70% 0.08 178.7)
-
Step 500
500
#2F9D8A
oklch(63% 0.101 178.8)
-
Step 600
600
#008674
oklch(55.5% 0.101 178.9)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#064D42
oklch(37.7% 0.067 178.6)
-
Step 950
950
#092D27
oklch(27% 0.042 179.7)
#63AF9F 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) | #A9A79E | 0.084 |
| Deuteranopia (no green cones) | #9D9EA0 | 0.080 |
| Tritanopia (no blue cones) | #46B1AA | 0.024 |
| Achromatopsia (no color) | #A1A1A1 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63AF9F
#63AF9F
oklch(70% 0.08 178.7)
- #C88A9D
#C88A9D
oklch(70% 0.079 359.4)
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 #63AF9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.034
- Light Sea Green #20B2AA ΔE 0.039
- Topaz #13BBAF ΔE 0.047
- Tea #65AB7C ΔE 0.047
- Dull Teal #5F9E8F ΔE 0.049
- Cadet Blue #5F9EA0 ΔE 0.051
- Muted Teal #90B494 ΔE 0.054
- Grey Green #86A17D ΔE 0.056
Use #63AF9F 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.