#5BB181
Closest named color: Tea (#65AB7C). oklch(69.3% 0.111 157.3), rgb(91, 177, 129).
Aa
Black text reads best on this color (8.05:1).
About this color
#5BB181 is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.111 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.017 away. Black text reads best on it, at 8.05:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 8.05:1 |
| White text | 2.60:1 |
Values
| HEX | #5BB181 |
| RGB | rgb(91, 177, 129) |
| HSL | hsl(147, 36%, 53%) |
| OKLCH | oklch(69.3% 0.111 157.3) |
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 #5BB181 | 2.60:1 | Fails | Lc -55.9 | Large or bold text, headings |
| Black text on #5BB181 | 8.05:1 | AAA | Lc 53.3 | Large or bold text, headings |
| #5BB181 text on white | 2.60:1 | Fails | Lc 50.7 | Large or bold text, headings |
| #5BB181 text on black | 8.05:1 | AAA | Lc -51.2 | 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
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#E0EEE5
oklch(93.6% 0.019 157.9)
-
Step 200
200
#C5E1CF
oklch(88.4% 0.038 157.3)
-
Step 300
300
#9CCFAF
oklch(81% 0.07 156.9)
-
Step 400
400 (this color)
#5BB181
oklch(69.3% 0.111 157.3)
-
Step 500
500
#1EA266
oklch(63% 0.141 157.2)
-
Step 600
600
#008953
oklch(55.5% 0.131 157.3)
-
Step 700
700
#007445
oklch(49.2% 0.117 157)
-
Step 800
800
#005F38
oklch(42.7% 0.101 157.3)
-
Step 900
900
#004F2E
oklch(37.6% 0.089 157.5)
-
Step 950
950
#052F1B
oklch(27.1% 0.059 157.6)
#5BB181 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) | #B0A67E | 0.102 |
| Deuteranopia (no green cones) | #A39D84 | 0.099 |
| Tritanopia (no blue cones) | #44B0A4 | 0.051 |
| Achromatopsia (no color) | #A0A0A0 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB181
#5BB181
oklch(69.3% 0.111 157.3)
- #C881B5
#C881B5
oklch(69.3% 0.11 337.2)
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 #5BB181, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.017
- Greeny Blue #42B395 ΔE 0.029
- Dark Seafoam Green #3EAF76 ΔE 0.029
- Dusty Green #76A973 ΔE 0.031
- Faded Green #7BB274 ΔE 0.034
- Algae #54AC68 ΔE 0.034
- Bluey Green #2BB179 ΔE 0.035
- Medium Sea Green #3CB371 ΔE 0.035
Use #5BB181 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.