#5BB278
Closest named color: Tea (#65AB7C). oklch(69.4% 0.121 152.9), rgb(91, 178, 120).
Aa
Black text reads best on this color (8.08:1).
About this color
#5BB278 is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.121 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.024 away. Black text reads best on it, at 8.08:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 8.08:1 |
| White text | 2.59:1 |
Values
| HEX | #5BB278 |
| RGB | rgb(91, 178, 120) |
| HSL | hsl(140, 36%, 53%) |
| OKLCH | oklch(69.4% 0.121 152.9) |
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 #5BB278 | 2.59:1 | Fails | Lc -55.7 | Large or bold text, headings |
| Black text on #5BB278 | 8.08:1 | AAA | Lc 53.5 | Large or bold text, headings |
| #5BB278 text on white | 2.59:1 | Fails | Lc 50.5 | Large or bold text, headings |
| #5BB278 text on black | 8.08:1 | AAA | Lc -51.4 | 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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E0EEE3
oklch(93.6% 0.021 152.2)
-
Step 200
200
#C5E2CC
oklch(88.5% 0.043 152.7)
-
Step 300
300
#9CCFAA
oklch(80.9% 0.074 153)
-
Step 400
400 (this color)
#5BB278
oklch(69.4% 0.121 152.9)
-
Step 500
500
#1EA35A
oklch(63.1% 0.154 152.9)
-
Step 600
600
#008A48
oklch(55.5% 0.143 153)
-
Step 700
700
#00743C
oklch(49% 0.126 153.1)
-
Step 800
800
#005F30
oklch(42.6% 0.109 153.1)
-
Step 900
900
#005027
oklch(37.8% 0.098 152.9)
-
Step 950
950
#052F17
oklch(27% 0.063 153.4)
#5BB278 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) | #B2A674 | 0.105 |
| Deuteranopia (no green cones) | #A59D7C | 0.103 |
| Tritanopia (no blue cones) | #47B0A3 | 0.063 |
| Achromatopsia (no color) | #A1A1A1 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB278
#5BB278
oklch(69.4% 0.121 152.9)
- #C97FBD
#C97FBD
oklch(69.4% 0.122 332.8)
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 #5BB278, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.024
- Dark Seafoam Green #3EAF76 ΔE 0.025
- Boring Green #63B365 ΔE 0.025
- Algae #54AC68 ΔE 0.025
- Medium Sea Green #3CB371 ΔE 0.026
- Bluey Green #2BB179 ΔE 0.031
- Faded Green #7BB274 ΔE 0.031
- Dusty Green #76A973 ΔE 0.033
Use #5BB278 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.