#43CBEA
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(78.2% 0.122 216.4), rgb(67, 203, 234).
Aa
Black text reads best on this color (10.96:1).
About this color
#43CBEA is a light, moderately saturated teal or cyan. In OKLCH its lightness is 78%, its chroma 0.122 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.013 away. Black text reads best on it, at 10.96:1.
| Hue family | Teals and cyans |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.96:1 |
| White text | 1.91:1 |
Values
| HEX | #43CBEA |
| RGB | rgb(67, 203, 234) |
| HSL | hsl(191, 80%, 59%) |
| OKLCH | oklch(78.2% 0.122 216.4) |
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 #43CBEA | 1.91:1 | Fails | Lc -40.5 | Non-text elements, placeholder text |
| Black text on #43CBEA | 10.96:1 | AAA | Lc 67.7 | Content text, not long reading |
| #43CBEA text on white | 1.91:1 | Fails | Lc 36.2 | Non-text elements, placeholder text |
| #43CBEA text on black | 10.96:1 | AAA | Lc -66.3 | 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
#EAF8FD
oklch(97% 0.016 221.1)
-
Step 100
100
#D1F0F9
oklch(93.6% 0.035 217.1)
-
Step 200
200
#A6E5F6
oklch(88.5% 0.068 216.3)
-
Step 300
300 (this color)
#43CBEA
oklch(78.2% 0.122 216.4)
-
Step 400
400
#00B3D3
oklch(70.7% 0.126 216.7)
-
Step 500
500
#009AB5
oklch(63.2% 0.112 216)
-
Step 600
600
#008198
oklch(55.6% 0.099 216.1)
-
Step 700
700
#006C80
oklch(49% 0.087 216.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#43CBEA 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) | #B6C5EC | 0.106 |
| Deuteranopia (no green cones) | #9FB4EA | 0.096 |
| Tritanopia (no blue cones) | #00D6D5 | 0.052 |
| Achromatopsia (no color) | #BBBBBB | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43CBEA
#43CBEA
oklch(78.2% 0.122 216.4)
- #FB9B80
#FB9B80
oklch(78.2% 0.122 36.5)
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 #43CBEA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.013
- Bright Sky Blue #02CCFE ΔE 0.031
- Aqua Blue #02D8E9 ΔE 0.038
- Dark Turquoise #00CED1 ΔE 0.046
- Lightblue #7BC8F6 ΔE 0.047
- Medium Turquoise #48D1CC ΔE 0.052
- Sky Blue #87CEEB ΔE 0.054
- Deep Sky Blue #00BFFF ΔE 0.055
Use #43CBEA 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.