#63AEA1
Closest named color: Greeny Blue (#42B395). oklch(69.8% 0.078 181.5), rgb(99, 174, 161).
Aa
Black text reads best on this color (8.09:1).
About this color
#63AEA1 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.078 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.037 away. Black text reads best on it, at 8.09:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.09:1 |
| White text | 2.59:1 |
Values
| HEX | #63AEA1 |
| RGB | rgb(99, 174, 161) |
| HSL | hsl(170, 32%, 54%) |
| OKLCH | oklch(69.8% 0.078 181.5) |
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 #63AEA1 | 2.59:1 | Fails | Lc -55.7 | Large or bold text, headings |
| Black text on #63AEA1 | 8.09:1 | AAA | Lc 53.5 | Large or bold text, headings |
| #63AEA1 text on white | 2.59:1 | Fails | Lc 50.5 | Large or bold text, headings |
| #63AEA1 text on black | 8.09:1 | AAA | Lc -51.4 | 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
#E0EDEA
oklch(93.6% 0.014 180.7)
-
Step 200
200
#C7DFDA
oklch(88.4% 0.026 181.8)
-
Step 300
300
#9FCBC3
oklch(80.8% 0.048 182.7)
-
Step 400
400 (this color)
#63AEA1
oklch(69.8% 0.078 181.5)
-
Step 500
500
#309D8D
oklch(63.1% 0.1 181.1)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900
#074D44
oklch(37.8% 0.065 181.3)
-
Step 950
950
#092D28
oklch(27% 0.041 182.1)
#63AEA1 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) | #A8A6A1 | 0.083 |
| Deuteranopia (no green cones) | #9B9DA2 | 0.078 |
| Tritanopia (no blue cones) | #46B0AA | 0.023 |
| Achromatopsia (no color) | #A1A1A1 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63AEA1
#63AEA1
oklch(69.8% 0.078 181.5)
- #C78A9A
#C78A9A
oklch(69.8% 0.077 2.1)
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 #63AEA1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.037
- Light Sea Green #20B2AA ΔE 0.039
- Dull Teal #5F9E8F ΔE 0.047
- Cadet Blue #5F9EA0 ΔE 0.047
- Topaz #13BBAF ΔE 0.048
- Tea #65AB7C ΔE 0.051
- Muted Teal #90B494 ΔE 0.056
- Grey Teal #5E9B8A ΔE 0.057
Use #63AEA1 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.