#63AFA4
Closest named color: Light Sea Green (#20B2AA). oklch(70.2% 0.078 183.7), rgb(99, 175, 164).
Aa
Black text reads best on this color (8.19:1).
About this color
#63AFA4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.078 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.039 away. Black text reads best on it, at 8.19:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 8.19:1 |
| White text | 2.56:1 |
Values
| HEX | #63AFA4 |
| RGB | rgb(99, 175, 164) |
| HSL | hsl(171, 32%, 54%) |
| OKLCH | oklch(70.2% 0.078 183.7) |
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 #63AFA4 | 2.56:1 | Fails | Lc -55.1 | Large or bold text, headings |
| Black text on #63AFA4 | 8.19:1 | AAA | Lc 54.0 | Large or bold text, headings |
| #63AFA4 text on white | 2.56:1 | Fails | Lc 50.0 | Large or bold text, headings |
| #63AFA4 text on black | 8.19:1 | AAA | Lc -51.9 | 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
#E0EDEB
oklch(93.6% 0.014 185.9)
-
Step 200
200
#C7DFDB
oklch(88.5% 0.026 184.7)
-
Step 300
300
#9ECBC4
oklch(80.8% 0.048 184.6)
-
Step 400
400 (this color)
#63AFA4
oklch(70.2% 0.078 183.7)
-
Step 500
500
#2D9D90
oklch(63.1% 0.1 183.7)
-
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
#054D45
oklch(37.8% 0.065 182.8)
-
Step 950
950
#092D29
oklch(27.1% 0.041 184.6)
#63AFA4 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) | #A9A7A4 | 0.084 |
| Deuteranopia (no green cones) | #9C9EA5 | 0.078 |
| Tritanopia (no blue cones) | #44B2AB | 0.023 |
| Achromatopsia (no color) | #A2A2A2 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63AFA4
#63AFA4
oklch(70.2% 0.078 183.7)
- #C98B99
#C98B99
oklch(70.2% 0.078 4.4)
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 #63AFA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.039
- Greeny Blue #42B395 ΔE 0.039
- Topaz #13BBAF ΔE 0.047
- Cadet Blue #5F9EA0 ΔE 0.049
- Dull Teal #5F9E8F ΔE 0.051
- Tea #65AB7C ΔE 0.054
- Muted Teal #90B494 ΔE 0.056
- Greyblue #77A1B5 ΔE 0.057
Use #63AFA4 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.