#63BFA2
Closest named color: Medium Aquamarine (#66CDAA). oklch(74% 0.099 170.7), rgb(99, 191, 162).
Aa
Black text reads best on this color (9.50:1).
About this color
#63BFA2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.099 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.039 away. Black text reads best on it, at 9.50:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 9.50:1 |
| White text | 2.20:1 |
Values
| HEX | #63BFA2 |
| RGB | rgb(99, 191, 162) |
| HSL | hsl(161, 42%, 57%) |
| OKLCH | oklch(74% 0.099 170.7) |
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 #63BFA2 | 2.20:1 | Fails | Lc -48.1 | Large or bold text, headings |
| Black text on #63BFA2 | 9.50:1 | AAA | Lc 60.6 | Content text, not long reading |
| #63BFA2 text on white | 2.20:1 | Fails | Lc 43.3 | Non-text elements, placeholder text |
| #63BFA2 text on black | 9.50:1 | AAA | Lc -58.8 | 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
#F0F7F5
oklch(97% 0.008 177.3)
-
Step 100
100
#DFEEE8
oklch(93.6% 0.018 170.1)
-
Step 200
200
#C4E1D6
oklch(88.5% 0.034 170.7)
-
Step 300
300
#99CEBB
oklch(80.9% 0.061 170.6)
-
Step 400
400 (this color)
#63BFA2
oklch(74% 0.099 170.7)
-
Step 500
500
#00A17F
oklch(63.1% 0.124 170.8)
-
Step 600
600
#00876A
oklch(55.5% 0.109 170.8)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
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
#012E23
oklch(26.9% 0.051 171.7)
#63BFA2 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) | #BAB5A1 | 0.101 |
| Deuteranopia (no green cones) | #ACAAA4 | 0.097 |
| Tritanopia (no blue cones) | #41C0B6 | 0.033 |
| Achromatopsia (no color) | #AEAEAE | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63BFA2
#63BFA2
oklch(74% 0.099 170.7)
- #DB91B3
#DB91B3
oklch(74.1% 0.099 350.7)
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 #63BFA2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.039
- Dark Sea Green #8FBC8F ΔE 0.046
- Topaz #13BBAF ΔE 0.046
- Greeny Blue #42B395 ΔE 0.047
- Muted Teal #90B494 ΔE 0.049
- Pale Teal #82CBB2 ΔE 0.050
- Greenblue #23C48B ΔE 0.056
- Green Blue #01C08D ΔE 0.057
Use #63BFA2 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.