#01B4AA
Closest named color: Light Sea Green (#20B2AA). oklch(69.4% 0.121 187.8), rgb(1, 180, 170).
Aa
Black text reads best on this color (8.11:1).
About this color
#01B4AA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.121 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.007 away. Black text reads best on it, at 8.11:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 8.11:1 |
| White text | 2.58:1 |
Values
| HEX | #01B4AA |
| RGB | rgb(1, 180, 170) |
| HSL | hsl(177, 99%, 35%) |
| OKLCH | oklch(69.4% 0.121 187.8) |
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 #01B4AA | 2.58:1 | Fails | Lc -55.1 | Large or bold text, headings |
| Black text on #01B4AA | 8.11:1 | AAA | Lc 54.1 | Large or bold text, headings |
| #01B4AA text on white | 2.58:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #01B4AA text on black | 8.11:1 | AAA | Lc -52.0 | 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
#EEF8F7
oklch(97.1% 0.011 189.8)
-
Step 100
100
#DAEFEC
oklch(93.6% 0.022 186.5)
-
Step 200
200
#BBE3DE
oklch(88.6% 0.042 187.1)
-
Step 300
300
#86D1C9
oklch(80.9% 0.076 187.3)
-
Step 400
400 (this color)
#01B4AA
oklch(69.4% 0.121 187.8)
-
Step 500
500
#009E95
oklch(63% 0.11 187.7)
-
Step 600
600
#00857E
oklch(55.6% 0.097 188.3)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#004D48
oklch(37.8% 0.066 187.3)
-
Step 950
950
#002E2B
oklch(27.1% 0.047 188)
#01B4AA 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) | #A9A9AA | 0.128 |
| Deuteranopia (no green cones) | #959BAB | 0.120 |
| Tritanopia (no blue cones) | #00B9B1 | 0.015 |
| Achromatopsia (no color) | #A1A1A1 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01B4AA
#01B4AA
oklch(69.4% 0.121 187.8)
- #DB7B8E
#DB7B8E
oklch(69.3% 0.12 8)
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 #01B4AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.007
- Topaz #13BBAF ΔE 0.021
- Greeny Blue #42B395 ΔE 0.033
- Turquoise Blue #06B1C4 ΔE 0.043
- Green Blue #01C08D ΔE 0.063
- Persian Green #2A9D8F ΔE 0.067
- Bluey Green #2BB179 ΔE 0.067
- Dull Teal #5F9E8F ΔE 0.068
Use #01B4AA 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.