#4BC991
Closest named color: Greenblue (#23C48B). oklch(75.1% 0.139 160.8), rgb(75, 201, 145).
Aa
Black text reads best on this color (10.06:1).
About this color
#4BC991 is a medium-light, moderately saturated green. In OKLCH its lightness is 75%, its chroma 0.139 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greenblue (#23C48B), ΔE 0.026 away. Black text reads best on it, at 10.06:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Greenblue (#23C48B) |
| Black text | 10.06:1 |
| White text | 2.08:1 |
Values
| HEX | #4BC991 |
| RGB | rgb(75, 201, 145) |
| HSL | hsl(153, 54%, 54%) |
| OKLCH | oklch(75.1% 0.139 160.8) |
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 #4BC991 | 2.08:1 | Fails | Lc -45.0 | Large or bold text, headings |
| Black text on #4BC991 | 10.06:1 | AAA | Lc 63.5 | Content text, not long reading |
| #4BC991 text on white | 2.08:1 | Fails | Lc 40.5 | Non-text elements, placeholder text |
| #4BC991 text on black | 10.06:1 | AAA | Lc -61.8 | Content text, not long reading |
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
#EFF8F3
oklch(97.1% 0.012 162.1)
-
Step 100
100
#DCEFE4
oklch(93.5% 0.025 160.6)
-
Step 200
200
#BEE4CF
oklch(88.6% 0.049 161)
-
Step 300
300
#8DD2AE
oklch(80.8% 0.087 160.9)
-
Step 400
400 (this color)
#4BC991
oklch(75.1% 0.139 160.8)
-
Step 500
500
#00A36C
oklch(63.2% 0.142 160.5)
-
Step 600
600
#00895B
oklch(55.6% 0.124 161)
-
Step 700
700
#00734C
oklch(49.1% 0.109 161.2)
-
Step 800
800
#005E3D
oklch(42.6% 0.095 160.9)
-
Step 900
900
#004F32
oklch(37.7% 0.085 160.4)
-
Step 950
950
#002F1C
oklch(26.9% 0.06 160.5)
#4BC991 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) | #C6BB8E | 0.131 |
| Deuteranopia (no green cones) | #B5AE95 | 0.129 |
| Tritanopia (no blue cones) | #00C8BA | 0.059 |
| Achromatopsia (no color) | #B3B3B3 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4BC991
#4BC991
oklch(75.1% 0.139 160.8)
- #E989C9
#E989C9
oklch(75.1% 0.14 340.7)
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 #4BC991, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greenblue #23C48B ΔE 0.026
- Emerald #06D6A0 ΔE 0.037
- Soft Green #6FC276 ΔE 0.037
- Green Blue #01C08D ΔE 0.039
- Dark Mint #48C072 ΔE 0.042
- Medium Aquamarine #66CDAA ΔE 0.042
- Seaweed #18D17B ΔE 0.047
- Dark Mint Green #20C073 ΔE 0.050
Use #4BC991 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.