#63A573
Closest named color: Tea (#65AB7C). oklch(66.4% 0.101 150.7), rgb(99, 165, 115).
Aa
Black text reads best on this color (7.16:1).
About this color
#63A573 is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.101 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.019 away. Black text reads best on it, at 7.16:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 7.16:1 |
| White text | 2.93:1 |
Values
| HEX | #63A573 |
| RGB | rgb(99, 165, 115) |
| HSL | hsl(135, 27%, 52%) |
| OKLCH | oklch(66.4% 0.101 150.7) |
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 #63A573 | 2.93:1 | Fails | Lc -61.0 | Content text, not long reading |
| Black text on #63A573 | 7.16:1 | AAA | Lc 48.4 | Large or bold text, headings |
| #63A573 text on white | 2.93:1 | Fails | Lc 55.6 | Large or bold text, headings |
| #63A573 text on black | 7.16:1 | AAA | Lc -46.1 | 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 500.
-
Step 50
50
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE5
oklch(93.6% 0.015 151.8)
-
Step 200
200
#CDDFD0
oklch(88.6% 0.028 150.4)
-
Step 300
300
#ABCAB1
oklch(80.9% 0.048 150.9)
-
Step 400
400
#7CAF87
oklch(70.7% 0.079 150.7)
-
Step 500
500 (this color)
#63A573
oklch(66.4% 0.101 150.7)
-
Step 600
600
#3C8551
oklch(55.6% 0.109 150.8)
-
Step 700
700
#2D7141
oklch(49.2% 0.103 150.5)
-
Step 800
800
#275C36
oklch(42.8% 0.085 150.6)
-
Step 900
900
#254B2F
oklch(37.6% 0.065 150.8)
-
Step 950
950
#162C1C
oklch(26.9% 0.041 151.6)
#63A573 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) | #A69B70 | 0.086 |
| Deuteranopia (no green cones) | #9C9476 | 0.084 |
| Tritanopia (no blue cones) | #58A398 | 0.055 |
| Achromatopsia (no color) | #979797 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A573
#63A573
oklch(66.4% 0.101 150.7)
- #B77CB0
#B77CB0
oklch(66.4% 0.101 330.9)
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 #63A573, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.019
- Dusty Green #76A973 ΔE 0.025
- Dull Green #74A662 ΔE 0.027
- Algae #54AC68 ΔE 0.032
- Greeny Grey #7EA07A ΔE 0.036
- Dark Seafoam Green #3EAF76 ΔE 0.037
- Off Green #6BA353 ΔE 0.038
- Moss #769958 ΔE 0.040
Use #63A573 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.