#43BDFC
Closest named color: Deep Sky Blue (#00BFFF). oklch(75.8% 0.139 235.7), rgb(67, 189, 252).
Aa
Black text reads best on this color (9.92:1).
About this color
#43BDFC is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.139 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.018 away. Black text reads best on it, at 9.92:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.92:1 |
| White text | 2.11:1 |
Values
| HEX | #43BDFC |
| RGB | rgb(67, 189, 252) |
| HSL | hsl(200, 97%, 63%) |
| OKLCH | oklch(75.8% 0.139 235.7) |
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 #43BDFC | 2.11:1 | Fails | Lc -45.7 | Large or bold text, headings |
| Black text on #43BDFC | 9.92:1 | AAA | Lc 62.9 | Content text, not long reading |
| #43BDFC text on white | 2.11:1 | Fails | Lc 41.1 | Non-text elements, placeholder text |
| #43BDFC text on black | 9.92:1 | AAA | Lc -61.2 | 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 400.
-
Step 50
50
#EEF7FC
oklch(97.1% 0.012 231.7)
-
Step 100
100
#DBEDF9
oklch(93.6% 0.025 236.8)
-
Step 200
200
#BCDFF5
oklch(88.5% 0.048 235.7)
-
Step 300
300
#88CAF1
oklch(80.9% 0.087 235.3)
-
Step 400
400 (this color)
#43BDFC
oklch(75.8% 0.139 235.7)
-
Step 500
500
#0094CF
oklch(63% 0.135 235.8)
-
Step 600
600
#007DAF
oklch(55.7% 0.119 235.4)
-
Step 700
700
#006994
oklch(49.2% 0.105 235.5)
-
Step 800
800
#00567A
oklch(42.8% 0.091 235.4)
-
Step 900
900
#004766
oklch(37.6% 0.081 235.8)
-
Step 950
950
#002A3F
oklch(27% 0.059 236.5)
#43BDFC 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) | #9FBCFF | 0.083 |
| Deuteranopia (no green cones) | #86AAFB | 0.070 |
| Tritanopia (no blue cones) | #00CDD2 | 0.089 |
| Achromatopsia (no color) | #B2B2B2 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43BDFC
#43BDFC
oklch(75.8% 0.139 235.7)
- #F39752
#F39752
oklch(75.8% 0.139 55.5)
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 #43BDFC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.018
- Bright Sky Blue #02CCFE ΔE 0.041
- Vivid Sky Blue #4CC9F0 ΔE 0.043
- Lightblue #7BC8F6 ΔE 0.057
- Carolina Blue #8AB8FE ΔE 0.059
- Sky #82CAFC ΔE 0.065
- Light Sky Blue #87CEFA ΔE 0.077
- Sky Blue #87CEEB ΔE 0.083
Use #43BDFC 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.