#81CBFD
Closest named color: Sky (#82CAFC). oklch(81.2% 0.102 239.3), rgb(129, 203, 253).
Aa
Black text reads best on this color (11.89:1).
About this color
#81CBFD is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.102 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Sky (#82CAFC), ΔE 0.003 away. Black text reads best on it, at 11.89:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Sky (#82CAFC) |
| Black text | 11.89:1 |
| White text | 1.76:1 |
Values
| HEX | #81CBFD |
| RGB | rgb(129, 203, 253) |
| HSL | hsl(204, 97%, 75%) |
| OKLCH | oklch(81.2% 0.102 239.3) |
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 #81CBFD | 1.76:1 | Fails | Lc -36.2 | Non-text elements, placeholder text |
| Black text on #81CBFD | 11.89:1 | AAA | Lc 71.6 | Content text, not long reading |
| #81CBFD text on white | 1.76:1 | Fails | Lc 32.3 | Non-text elements, placeholder text |
| #81CBFD text on black | 11.89:1 | AAA | Lc -70.4 | 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
#D9EDFC
oklch(93.6% 0.029 240.2)
-
Step 200
200
#B8DFFB
oklch(88.5% 0.056 239.5)
-
Step 300
300 (this color)
#81CBFD
oklch(81.2% 0.102 239.3)
-
Step 400
400
#00ABF9
oklch(70.6% 0.161 239.7)
-
Step 500
500
#0093D6
oklch(63.1% 0.143 239.3)
-
Step 600
600
#007BB4
oklch(55.5% 0.126 239.3)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#00466A
oklch(37.6% 0.086 240.1)
-
Step 950
950
#002A41
oklch(27.1% 0.061 239)
#81CBFD 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) | #B5CAFF | 0.058 |
| Deuteranopia (no green cones) | #A4BDFC | 0.050 |
| Tritanopia (no blue cones) | #42D8DC | 0.082 |
| Achromatopsia (no color) | #C3C3C3 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81CBFD
#81CBFD
oklch(81.2% 0.102 239.3)
- #F3B27D
#F3B27D
oklch(81.3% 0.102 59.8)
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 #81CBFD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky #82CAFC ΔE 0.003
- Light Sky Blue #87CEFA ΔE 0.012
- Lightblue #7BC8F6 ΔE 0.014
- Sky Blue #87CEEB ΔE 0.030
- Baby Blue #A2CFFE ΔE 0.038
- Pastel Blue #A2BFFE ΔE 0.045
- Vivid Sky Blue #4CC9F0 ΔE 0.048
- Carolina Blue #8AB8FE ΔE 0.051
Use #81CBFD 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.