#4EB557
Closest named color: Cool Green (#33B864). oklch(69% 0.163 145.1), rgb(78, 181, 87).
Aa
Black text reads best on this color (8.07:1).
About this color
#4EB557 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.163 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Cool Green (#33B864), ΔE 0.018 away. Black text reads best on it, at 8.07:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Cool Green (#33B864) |
| Black text | 8.07:1 |
| White text | 2.60:1 |
Values
| HEX | #4EB557 |
| RGB | rgb(78, 181, 87) |
| HSL | hsl(125, 41%, 51%) |
| OKLCH | oklch(69% 0.163 145.1) |
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 #4EB557 | 2.60:1 | Fails | Lc -55.6 | Large or bold text, headings |
| Black text on #4EB557 | 8.07:1 | AAA | Lc 53.5 | Large or bold text, headings |
| #4EB557 text on white | 2.60:1 | Fails | Lc 50.5 | Large or bold text, headings |
| #4EB557 text on black | 8.07:1 | 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
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DEEFDE
oklch(93.5% 0.029 145.3)
-
Step 200
200
#C3E4C3
oklch(88.6% 0.057 145.1)
-
Step 300
300
#96D298
oklch(80.8% 0.102 145.4)
-
Step 400
400 (this color)
#4EB557
oklch(69% 0.163 145.1)
-
Step 500
500
#00A62E
oklch(63% 0.197 145.2)
-
Step 600
600
#008C25
oklch(55.6% 0.174 145.1)
-
Step 700
700
#00761E
oklch(49.2% 0.154 145.2)
-
Step 800
800
#006117
oklch(42.8% 0.134 145.2)
-
Step 900
900
#005111
oklch(37.8% 0.119 145.1)
-
Step 950
950
#003007
oklch(26.9% 0.084 145.2)
#4EB557 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) | #B8A64F | 0.124 |
| Deuteranopia (no green cones) | #AA9D5E | 0.123 |
| Tritanopia (no blue cones) | #3BB19F | 0.099 |
| Achromatopsia (no color) | #A0A0A0 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4EB557
#4EB557
oklch(69% 0.163 145.1)
- #CD74D2
#CD74D2
oklch(69% 0.163 325.2)
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 #4EB557, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Green #33B864 ΔE 0.018
- Dark Pastel Green #56AE57 ΔE 0.020
- Boring Green #63B365 ΔE 0.028
- Leafy Green #51B73B ΔE 0.028
- Medium Green #39AD48 ΔE 0.032
- Medium Sea Green #3CB371 ΔE 0.033
- Fern #63A950 ΔE 0.035
- Shamrock #01B44C ΔE 0.035
Use #4EB557 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.