#81CBFA
Closest named color: Sky (#82CAFC). oklch(81.1% 0.099 237.6), rgb(129, 203, 250).
Aa
Black text reads best on this color (11.85:1).
About this color
#81CBFA is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.099 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Sky (#82CAFC), ΔE 0.005 away. Black text reads best on it, at 11.85:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Sky (#82CAFC) |
| Black text | 11.85:1 |
| White text | 1.77:1 |
Values
| HEX | #81CBFA |
| RGB | rgb(129, 203, 250) |
| HSL | hsl(203, 92%, 74%) |
| OKLCH | oklch(81.1% 0.099 237.6) |
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 #81CBFA | 1.77:1 | Fails | Lc -36.4 | Non-text elements, placeholder text |
| Black text on #81CBFA | 11.85:1 | AAA | Lc 71.4 | Content text, not long reading |
| #81CBFA text on white | 1.77:1 | Fails | Lc 32.4 | Non-text elements, placeholder text |
| #81CBFA text on black | 11.85:1 | AAA | Lc -70.2 | 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 300.
-
Step 50
50
#EEF7FE
oklch(97.1% 0.013 241)
-
Step 100
100
#D9EDFB
oklch(93.6% 0.028 238.2)
-
Step 200
200
#B8DFFA
oklch(88.5% 0.055 238.5)
-
Step 300
300 (this color)
#81CBFA
oklch(81.1% 0.099 237.6)
-
Step 400
400
#00ACF5
oklch(70.6% 0.156 237.8)
-
Step 500
500
#0094D3
oklch(63.2% 0.139 237.5)
-
Step 600
600
#007CB2
oklch(55.6% 0.123 237.7)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#004768
oklch(37.7% 0.083 237.5)
-
Step 950
950
#002A40
oklch(27% 0.06 237.8)
#81CBFA 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) | #B6CAFC | 0.060 |
| Deuteranopia (no green cones) | #A5BDF9 | 0.050 |
| Tritanopia (no blue cones) | #45D7DA | 0.079 |
| Achromatopsia (no color) | #C3C3C3 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81CBFA
#81CBFA
oklch(81.1% 0.099 237.6)
- #F2B180
#F2B180
oklch(81% 0.1 57.8)
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 #81CBFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky #82CAFC ΔE 0.005
- Light Sky Blue #87CEFA ΔE 0.011
- Lightblue #7BC8F6 ΔE 0.011
- Sky Blue #87CEEB ΔE 0.026
- Baby Blue #A2CFFE ΔE 0.038
- Vivid Sky Blue #4CC9F0 ΔE 0.046
- Pastel Blue #A2BFFE ΔE 0.047
- Light Cornflower Blue #98C1D9 ΔE 0.049
Use #81CBFA 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.