#01BFCA
Closest named color: Topaz (#13BBAF). oklch(73.3% 0.125 202.1), rgb(1, 191, 202).
Aa
Black text reads best on this color (9.30:1).
About this color
#01BFCA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.125 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.038 away. Black text reads best on it, at 9.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.30:1 |
| White text | 2.25:1 |
Values
| HEX | #01BFCA |
| RGB | rgb(1, 191, 202) |
| HSL | hsl(183, 99%, 40%) |
| OKLCH | oklch(73.3% 0.125 202.1) |
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 #01BFCA | 2.25:1 | Fails | Lc -48.6 | Large or bold text, headings |
| Black text on #01BFCA | 9.30:1 | AAA | Lc 60.2 | Content text, not long reading |
| #01BFCA text on white | 2.25:1 | Fails | Lc 43.8 | Non-text elements, placeholder text |
| #01BFCA text on black | 9.30:1 | AAA | Lc -58.3 | 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
#EEF8F8
oklch(97.2% 0.011 197)
-
Step 100
100
#D9EFF0
oklch(93.6% 0.023 200.1)
-
Step 200
200
#B9E2E5
oklch(88.5% 0.043 201.9)
-
Step 300
300
#81D0D6
oklch(80.9% 0.078 201.9)
-
Step 400
400 (this color)
#01BFCA
oklch(73.3% 0.125 202.1)
-
Step 500
500
#009CA5
oklch(63.1% 0.107 202)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#01BFCA 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) | #AFB6CB | 0.125 |
| Deuteranopia (no green cones) | #98A5CB | 0.116 |
| Tritanopia (no blue cones) | #00C7C2 | 0.029 |
| Achromatopsia (no color) | #ADADAD | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01BFCA
#01BFCA
oklch(73.3% 0.125 202.1)
- #ED8785
#ED8785
oklch(73.3% 0.125 21.8)
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 #01BFCA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.038
- Turquoise Blue #06B1C4 ΔE 0.039
- Dark Turquoise #00CED1 ΔE 0.042
- Light Sea Green #20B2AA ΔE 0.051
- Medium Turquoise #48D1CC ΔE 0.059
- Vivid Sky Blue #4CC9F0 ΔE 0.066
- Greeny Blue #42B395 ΔE 0.073
- Aqua Blue #02D8E9 ΔE 0.074
Use #01BFCA 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.