#63B291
Closest named color: Greeny Blue (#42B395). oklch(70.3% 0.093 165), rgb(99, 178, 145).
Aa
Black text reads best on this color (8.30:1).
About this color
#63B291 is a medium-light, moderately saturated green. In OKLCH its lightness is 70%, its chroma 0.093 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.024 away. Black text reads best on it, at 8.30:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.30:1 |
| White text | 2.52:1 |
Values
| HEX | #63B291 |
| RGB | rgb(99, 178, 145) |
| HSL | hsl(155, 34%, 54%) |
| OKLCH | oklch(70.3% 0.093 165) |
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 #63B291 | 2.52:1 | Fails | Lc -54.5 | Large or bold text, headings |
| Black text on #63B291 | 8.30:1 | AAA | Lc 54.6 | Large or bold text, headings |
| #63B291 text on white | 2.52:1 | Fails | Lc 49.4 | Large or bold text, headings |
| #63B291 text on black | 8.30:1 | AAA | Lc -52.5 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E0EEE7
oklch(93.7% 0.018 164.6)
-
Step 200
200
#C6E0D4
oklch(88.4% 0.032 166.2)
-
Step 300
300
#9ECDB7
oklch(80.9% 0.058 164.7)
-
Step 400
400 (this color)
#63B291
oklch(70.3% 0.093 165)
-
Step 500
500
#2CA077
oklch(63.2% 0.119 164.7)
-
Step 600
600
#008862
oklch(55.5% 0.117 165.2)
-
Step 700
700
#007352
oklch(49.2% 0.104 164.9)
-
Step 800
800
#005E42
oklch(42.7% 0.09 164.7)
-
Step 900
900
#044E37
oklch(37.6% 0.077 165)
-
Step 950
950
#082E20
oklch(27% 0.05 164.4)
#63B291 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) | #AFA88F | 0.092 |
| Deuteranopia (no green cones) | #A39F93 | 0.090 |
| Tritanopia (no blue cones) | #4CB2A9 | 0.037 |
| Achromatopsia (no color) | #A3A3A3 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B291
#63B291
oklch(70.3% 0.093 165)
- #C988AD
#C988AD
oklch(70.3% 0.093 344.6)
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 #63B291, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.024
- Tea #65AB7C ΔE 0.029
- Dusty Green #76A973 ΔE 0.040
- Faded Green #7BB274 ΔE 0.042
- Sage #87AE73 ΔE 0.048
- Sage Green #88B378 ΔE 0.048
- Light Sea Green #20B2AA ΔE 0.049
- Muted Teal #90B494 ΔE 0.050
Use #63B291 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.