#01BB90
Closest named color: Green Blue (#01C08D). oklch(70.4% 0.141 168.8), rgb(1, 187, 144).
Aa
Black text reads best on this color (8.51:1).
About this color
#01BB90 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.141 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Green Blue (#01C08D), ΔE 0.017 away. Black text reads best on it, at 8.51:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Green Blue (#01C08D) |
| Black text | 8.51:1 |
| White text | 2.46:1 |
Values
| HEX | #01BB90 |
| RGB | rgb(1, 187, 144) |
| HSL | hsl(166, 99%, 37%) |
| OKLCH | oklch(70.4% 0.141 168.8) |
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 #01BB90 | 2.46:1 | Fails | Lc -52.8 | Large or bold text, headings |
| Black text on #01BB90 | 8.51:1 | AAA | Lc 56.2 | Large or bold text, headings |
| #01BB90 text on white | 2.46:1 | Fails | Lc 47.8 | Large or bold text, headings |
| #01BB90 text on black | 8.51:1 | AAA | Lc -54.2 | 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
#EEF8F4
oklch(97.1% 0.012 170.3)
-
Step 100
100
#DAF0E7
oklch(93.6% 0.026 169.3)
-
Step 200
200
#BBE4D3
oklch(88.5% 0.049 168.1)
-
Step 300
300
#85D3B7
oklch(80.8% 0.087 169.3)
-
Step 400
400 (this color)
#01BB90
oklch(70.4% 0.141 168.8)
-
Step 500
500
#00A17C
oklch(63% 0.126 169.1)
-
Step 600
600
#008868
oklch(55.7% 0.112 168.9)
-
Step 700
700
#007257
oklch(49.1% 0.098 169.1)
-
Step 800
800
#005E47
oklch(42.8% 0.086 168.9)
-
Step 900
900
#004E3A
oklch(37.7% 0.076 168.5)
-
Step 950
950
#002F22
oklch(27.1% 0.054 168.9)
#01BB90 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) | #B6AD8E | 0.143 |
| Deuteranopia (no green cones) | #A39F93 | 0.138 |
| Tritanopia (no blue cones) | #00BCAF | 0.045 |
| Achromatopsia (no color) | #A5A5A5 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01BB90
#01BB90
oklch(70.4% 0.141 168.8)
- #DF78AE
#DF78AE
oklch(70.4% 0.142 348.7)
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 #01BB90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Blue #01C08D ΔE 0.017
- Dark Seafoam #1FB57A ΔE 0.029
- Greenblue #23C48B ΔE 0.031
- Greeny Blue #42B395 ΔE 0.032
- Green Teal #0CB577 ΔE 0.034
- Bluey Green #2BB179 ΔE 0.035
- Medium Sea Green #3CB371 ΔE 0.040
- Dark Seafoam Green #3EAF76 ΔE 0.040
Use #01BB90 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.