#5BCC91
Closest named color: Emerald (#06D6A0). oklch(76.4% 0.135 158), rgb(91, 204, 145).
Aa
Black text reads best on this color (10.49:1).
About this color
#5BCC91 is a medium-light, moderately saturated green. In OKLCH its lightness is 76%, its chroma 0.135 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald (#06D6A0), ΔE 0.036 away. Black text reads best on it, at 10.49:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Emerald (#06D6A0) |
| Black text | 10.49:1 |
| White text | 2.00:1 |
Values
| HEX | #5BCC91 |
| RGB | rgb(91, 204, 145) |
| HSL | hsl(149, 53%, 58%) |
| OKLCH | oklch(76.4% 0.135 158) |
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 #5BCC91 | 2.00:1 | Fails | Lc -43.0 | Non-text elements, placeholder text |
| Black text on #5BCC91 | 10.49:1 | AAA | Lc 65.4 | Content text, not long reading |
| #5BCC91 text on white | 2.00:1 | Fails | Lc 38.5 | Non-text elements, placeholder text |
| #5BCC91 text on black | 10.49:1 | AAA | Lc -63.9 | 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 300.
-
Step 50
50
#ECF9F1
oklch(97% 0.017 159.1)
-
Step 100
100
#D5F2E0
oklch(93.5% 0.039 158.3)
-
Step 200
200
#B0E9C6
oklch(88.5% 0.076 157.5)
-
Step 300
300 (this color)
#5BCC91
oklch(76.4% 0.135 158)
-
Step 400
400
#00BE78
oklch(70.6% 0.164 158.2)
-
Step 500
500
#00A366
oklch(63% 0.147 158.1)
-
Step 600
600
#008955
oklch(55.5% 0.129 158.2)
-
Step 700
700
#007447
oklch(49.2% 0.115 158)
-
Step 800
800
#005F39
oklch(42.8% 0.1 157.9)
-
Step 900
900
#004F2F
oklch(37.7% 0.088 158.2)
-
Step 950
950
#002F1A
oklch(26.9% 0.063 158.2)
#5BCC91 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) | #CABE8D | 0.124 |
| Deuteranopia (no green cones) | #BAB395 | 0.121 |
| Tritanopia (no blue cones) | #34CBBC | 0.061 |
| Achromatopsia (no color) | #B7B7B7 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BCC91
#5BCC91
oklch(76.4% 0.135 158)
- #E98FD0
#E98FD0
oklch(76.3% 0.135 337.9)
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 #5BCC91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald #06D6A0 ΔE 0.036
- Soft Green #6FC276 ΔE 0.036
- Medium Aquamarine #66CDAA ΔE 0.036
- Greenblue #23C48B ΔE 0.040
- Seaweed #18D17B ΔE 0.049
- Dark Mint #48C072 ΔE 0.050
- Green Blue #01C08D ΔE 0.053
- Seafoam Blue #78D1B6 ΔE 0.059
Use #5BCC91 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.