#01BDC4
Closest named color: Topaz (#13BBAF). oklch(72.5% 0.123 199.5), rgb(1, 189, 196).
Aa
Black text reads best on this color (9.07:1).
About this color
#01BDC4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.123 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.030 away. Black text reads best on it, at 9.07:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.07:1 |
| White text | 2.31:1 |
Values
| HEX | #01BDC4 |
| RGB | rgb(1, 189, 196) |
| HSL | hsl(182, 99%, 39%) |
| OKLCH | oklch(72.5% 0.123 199.5) |
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 #01BDC4 | 2.31:1 | Fails | Lc -49.8 | Large or bold text, headings |
| Black text on #01BDC4 | 9.07:1 | AAA | Lc 59.0 | Large or bold text, headings |
| #01BDC4 text on white | 2.31:1 | Fails | Lc 45.0 | Non-text elements, placeholder text |
| #01BDC4 text on black | 9.07:1 | AAA | Lc -57.2 | 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
#EEF8F8
oklch(97.2% 0.011 197)
-
Step 100
100
#DAEFF0
oklch(93.7% 0.022 200.2)
-
Step 200
200
#B9E2E4
oklch(88.4% 0.043 200.1)
-
Step 300
300
#82D0D4
oklch(80.9% 0.077 199.9)
-
Step 400
400 (this color)
#01BDC4
oklch(72.5% 0.123 199.5)
-
Step 500
500
#009DA2
oklch(63.2% 0.107 198.8)
-
Step 600
600
#008489
oklch(55.7% 0.095 199.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#005B5E
oklch(42.8% 0.073 198.7)
-
Step 900
900
#004C4F
oklch(37.8% 0.064 199.4)
-
Step 950
950
#002D2F
oklch(27% 0.046 199.4)
#01BDC4 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) | #AEB4C5 | 0.126 |
| Deuteranopia (no green cones) | #98A3C5 | 0.118 |
| Tritanopia (no blue cones) | #00C4BF | 0.024 |
| Achromatopsia (no color) | #AAAAAA | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01BDC4
#01BDC4
oklch(72.5% 0.123 199.5)
- #E98587
#E98587
oklch(72.5% 0.123 19.3)
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 #01BDC4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.030
- Turquoise Blue #06B1C4 ΔE 0.035
- Light Sea Green #20B2AA ΔE 0.042
- Dark Turquoise #00CED1 ΔE 0.048
- Medium Turquoise #48D1CC ΔE 0.064
- Greeny Blue #42B395 ΔE 0.065
- Vivid Sky Blue #4CC9F0 ΔE 0.075
- Medium Aquamarine #66CDAA ΔE 0.081
Use #01BDC4 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.