#63B19E
Closest named color: Greeny Blue (#42B395). oklch(70.5% 0.083 176.2), rgb(99, 177, 158).
Aa
Black text reads best on this color (8.31:1).
About this color
#63B19E is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.083 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.031 away. Black text reads best on it, at 8.31:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.31:1 |
| White text | 2.52:1 |
Values
| HEX | #63B19E |
| RGB | rgb(99, 177, 158) |
| HSL | hsl(165, 33%, 54%) |
| OKLCH | oklch(70.5% 0.083 176.2) |
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 #63B19E | 2.52:1 | Fails | Lc -54.5 | Large or bold text, headings |
| Black text on #63B19E | 8.31:1 | AAA | Lc 54.6 | Large or bold text, headings |
| #63B19E text on white | 2.52:1 | Fails | Lc 49.4 | Large or bold text, headings |
| #63B19E text on black | 8.31:1 | AAA | Lc -52.6 | 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
#E0EDE9
oklch(93.5% 0.015 175.7)
-
Step 200
200
#C6E0D8
oklch(88.5% 0.03 175.2)
-
Step 300
300
#9ECCBF
oklch(80.9% 0.052 175.8)
-
Step 400
400 (this color)
#63B19E
oklch(70.5% 0.083 176.2)
-
Step 500
500
#2B9E87
oklch(63.1% 0.106 176.1)
-
Step 600
600
#008771
oklch(55.7% 0.104 175.8)
-
Step 700
700
#00715F
oklch(49% 0.091 176.5)
-
Step 800
800
#005D4D
oklch(42.7% 0.08 175.6)
-
Step 900
900
#034D40
oklch(37.6% 0.069 176.2)
-
Step 950
950
#082D26
oklch(26.9% 0.043 177.6)
#63B19E 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) | #ACA89D | 0.088 |
| Deuteranopia (no green cones) | #9F9F9F | 0.083 |
| Tritanopia (no blue cones) | #46B3AB | 0.025 |
| Achromatopsia (no color) | #A3A3A3 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B19E
#63B19E
oklch(70.5% 0.083 176.2)
- #CA8AA1
#CA8AA1
oklch(70.4% 0.083 356.2)
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 #63B19E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.031
- Light Sea Green #20B2AA ΔE 0.040
- Topaz #13BBAF ΔE 0.045
- Tea #65AB7C ΔE 0.045
- Muted Teal #90B494 ΔE 0.051
- Dull Teal #5F9E8F ΔE 0.054
- Dusty Green #76A973 ΔE 0.056
- Cadet Blue #5F9EA0 ΔE 0.058
Use #63B19E 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.