#3BB575
Closest named color: Medium Sea Green (#3CB371). oklch(69% 0.143 156.2), rgb(59, 181, 117).
Aa
Black text reads best on this color (8.05:1).
About this color
#3BB575 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.143 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Sea Green (#3CB371), ΔE 0.006 away. Black text reads best on it, at 8.05:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Medium Sea Green (#3CB371) |
| Black text | 8.05:1 |
| White text | 2.60:1 |
Values
| HEX | #3BB575 |
| RGB | rgb(59, 181, 117) |
| HSL | hsl(149, 51%, 47%) |
| OKLCH | oklch(69% 0.143 156.2) |
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 #3BB575 | 2.60:1 | Fails | Lc -55.7 | Large or bold text, headings |
| Black text on #3BB575 | 8.05:1 | AAA | Lc 53.5 | Large or bold text, headings |
| #3BB575 text on white | 2.60:1 | Fails | Lc 50.5 | Large or bold text, headings |
| #3BB575 text on black | 8.05:1 | 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
#EFF8F2
oklch(97.1% 0.012 157)
-
Step 100
100
#DDEFE3
oklch(93.5% 0.025 156.7)
-
Step 200
200
#C0E4CC
oklch(88.6% 0.05 156.1)
-
Step 300
300
#90D2A9
oklch(80.8% 0.089 156.5)
-
Step 400
400 (this color)
#3BB575
oklch(69% 0.143 156.2)
-
Step 500
500
#00A461
oklch(63.2% 0.153 156.1)
-
Step 600
600
#008A51
oklch(55.7% 0.135 156.2)
-
Step 700
700
#007443
oklch(49.1% 0.119 156.1)
-
Step 800
800
#005F36
oklch(42.7% 0.103 156.1)
-
Step 900
900
#004F2C
oklch(37.6% 0.091 156.1)
-
Step 950
950
#002F18
oklch(26.8% 0.065 156.1)
#3BB575 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) | #B4A771 | 0.129 |
| Deuteranopia (no green cones) | #A49C79 | 0.126 |
| Tritanopia (no blue cones) | #00B3A4 | 0.068 |
| Achromatopsia (no color) | #A0A0A0 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3BB575
#3BB575
oklch(69% 0.143 156.2)
- #D276BD
#D276BD
oklch(69% 0.144 336.1)
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 #3BB575, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Sea Green #3CB371 ΔE 0.006
- Dark Seafoam #1FB57A ΔE 0.012
- Green Teal #0CB577 ΔE 0.015
- Bluey Green #2BB179 ΔE 0.017
- Dark Seafoam Green #3EAF76 ΔE 0.018
- Jade Green #2BAF6A ΔE 0.023
- Seaweed Green #35AD6B ΔE 0.025
- Cool Green #33B864 ΔE 0.026
Use #3BB575 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.