#5BB778
Closest named color: Boring Green (#63B365). oklch(70.6% 0.128 152.1), rgb(91, 183, 120).
Aa
Black text reads best on this color (8.48:1).
About this color
#5BB778 is a medium-light, moderately saturated green. In OKLCH its lightness is 71%, its chroma 0.128 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Boring Green (#63B365), ΔE 0.022 away. Black text reads best on it, at 8.48:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Boring Green (#63B365) |
| Black text | 8.48:1 |
| White text | 2.47:1 |
Values
| HEX | #5BB778 |
| RGB | rgb(91, 183, 120) |
| HSL | hsl(139, 39%, 54%) |
| OKLCH | oklch(70.6% 0.128 152.1) |
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 #5BB778 | 2.47:1 | Fails | Lc -53.4 | Large or bold text, headings |
| Black text on #5BB778 | 8.48:1 | AAA | Lc 55.6 | Large or bold text, headings |
| #5BB778 text on white | 2.47:1 | Fails | Lc 48.4 | Large or bold text, headings |
| #5BB778 text on black | 8.48:1 | AAA | Lc -53.6 | 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
#F0F8F2
oklch(97.1% 0.012 153.7)
-
Step 100
100
#DFEFE2
oklch(93.7% 0.024 151.2)
-
Step 200
200
#C4E2CB
oklch(88.5% 0.045 152.4)
-
Step 300
300
#9AD0A7
oklch(80.9% 0.08 151.7)
-
Step 400
400 (this color)
#5BB778
oklch(70.6% 0.128 152.1)
-
Step 500
500
#0AA455
oklch(63% 0.163 152.2)
-
Step 600
600
#008A45
oklch(55.5% 0.146 152)
-
Step 700
700
#007439
oklch(49% 0.129 152)
-
Step 800
800
#00602E
oklch(42.8% 0.113 152)
-
Step 900
900
#005025
oklch(37.8% 0.1 151.8)
-
Step 950
950
#032F15
oklch(26.9% 0.067 152.3)
#5BB778 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) | #B7AA74 | 0.110 |
| Deuteranopia (no green cones) | #AAA17C | 0.108 |
| Tritanopia (no blue cones) | #46B5A7 | 0.067 |
| Achromatopsia (no color) | #A5A5A5 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB778
#5BB778
oklch(70.6% 0.128 152.1)
- #CF81C4
#CF81C4
oklch(70.7% 0.129 332.1)
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 #5BB778, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Boring Green #63B365 ΔE 0.022
- Medium Sea Green #3CB371 ΔE 0.028
- Faded Green #7BB274 ΔE 0.031
- Dark Mint #48C072 ΔE 0.032
- Dark Seafoam Green #3EAF76 ΔE 0.034
- Dark Seafoam #1FB57A ΔE 0.035
- Algae #54AC68 ΔE 0.035
- Bluey Green #2BB179 ΔE 0.037
Use #5BB778 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.