#5BB23B
Closest named color: Leafy Green (#51B73B). oklch(68.5% 0.176 138.5), rgb(91, 178, 59).
Aa
Black text reads best on this color (7.87:1).
About this color
#5BB23B is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.176 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.015 away. Black text reads best on it, at 7.87:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.176) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 7.87:1 |
| White text | 2.66:1 |
Values
| HEX | #5BB23B |
| RGB | rgb(91, 178, 59) |
| HSL | hsl(104, 50%, 46%) |
| OKLCH | oklch(68.5% 0.176 138.5) |
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 #5BB23B | 2.66:1 | Fails | Lc -56.7 | Large or bold text, headings |
| Black text on #5BB23B | 7.87:1 | AAA | Lc 52.5 | Large or bold text, headings |
| #5BB23B text on white | 2.66:1 | Fails | Lc 51.6 | Large or bold text, headings |
| #5BB23B text on black | 7.87:1 | AAA | Lc -50.3 | 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
#F1F8EF
oklch(97.1% 0.014 138.7)
-
Step 100
100
#E0EFDB
oklch(93.5% 0.031 137.8)
-
Step 200
200
#C6E3BD
oklch(88.5% 0.06 138.3)
-
Step 300
300
#9DD28C
oklch(80.9% 0.11 138.3)
-
Step 400
400 (this color)
#5BB23B
oklch(68.5% 0.176 138.5)
-
Step 500
500
#3EA300
oklch(63.1% 0.197 138.5)
-
Step 600
600
#338900
oklch(55.5% 0.173 138.5)
-
Step 700
700
#2A7300
oklch(49% 0.153 138.4)
-
Step 800
800
#215F00
oklch(42.8% 0.134 138.5)
-
Step 900
900
#1A4F00
oklch(37.7% 0.118 138.5)
-
Step 950
950
#0C2F00
oklch(26.9% 0.084 138.6)
#5BB23B 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) | #B7A32B | 0.115 |
| Deuteranopia (no green cones) | #AC9C45 | 0.115 |
| Tritanopia (no blue cones) | #54AC9A | 0.122 |
| Achromatopsia (no color) | #9E9E9E | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB23B
#5BB23B
oklch(68.5% 0.176 138.5)
- #C671DE
#C671DE
oklch(68.4% 0.176 318.5)
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 #5BB23B, closest first.
No curated palette has a color within ΔE 0.04 of #5BB23B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.015
- Grass #5CAC2D ΔE 0.017
- Leaf #71AA34 ΔE 0.028
- Leaf Green #5CA904 ΔE 0.032
- Medium Green #39AD48 ΔE 0.032
- Dark Pastel Green #56AE57 ΔE 0.032
- Turtle Green #75B84F ΔE 0.038
- Shamrock #01B44C ΔE 0.038
Use #5BB23B 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.