#81BFEB
Closest named color: Lightblue (#7BC8F6). oklch(77.9% 0.09 240.3), rgb(129, 191, 235).
Aa
Black text reads best on this color (10.58:1).
About this color
#81BFEB is a medium-light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.090 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Lightblue (#7BC8F6), ΔE 0.025 away. Black text reads best on it, at 10.58:1.
| Hue family | Blues |
| Lightness | medium-light (78%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Lightblue (#7BC8F6) |
| Black text | 10.58:1 |
| White text | 1.98:1 |
Values
| HEX | #81BFEB |
| RGB | rgb(129, 191, 235) |
| HSL | hsl(205, 73%, 71%) |
| OKLCH | oklch(77.9% 0.09 240.3) |
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 #81BFEB | 1.98:1 | Fails | Lc -42.7 | Non-text elements, placeholder text |
| Black text on #81BFEB | 10.58:1 | AAA | Lc 65.7 | Content text, not long reading |
| #81BFEB text on white | 1.98:1 | Fails | Lc 38.2 | Non-text elements, placeholder text |
| #81BFEB text on black | 10.58:1 | AAA | Lc -64.2 | 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
#EFF7FD
oklch(97.2% 0.012 239.9)
-
Step 100
100
#DBEDFA
oklch(93.7% 0.026 239.1)
-
Step 200
200
#BCDEF7
oklch(88.4% 0.05 240)
-
Step 300
300 (this color)
#81BFEB
oklch(77.9% 0.09 240.3)
-
Step 400
400
#36AAF0
oklch(70.6% 0.143 240.4)
-
Step 500
500
#0092D8
oklch(63% 0.146 240.6)
-
Step 600
600
#007BB6
oklch(55.6% 0.128 240.2)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00547F
oklch(42.6% 0.099 240.7)
-
Step 900
900
#00466B
oklch(37.7% 0.087 240.8)
-
Step 950
950
#002A41
oklch(27.1% 0.061 239)
#81BFEB 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) | #ACBEED | 0.050 |
| Deuteranopia (no green cones) | #9EB3EA | 0.043 |
| Tritanopia (no blue cones) | #53CACD | 0.073 |
| Achromatopsia (no color) | #B8B8B8 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81BFEB
#81BFEB
oklch(77.9% 0.09 240.3)
- #E2AA7C
#E2AA7C
oklch(78% 0.09 60.3)
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 #81BFEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lightblue #7BC8F6 ΔE 0.025
- Sky #82CAFC ΔE 0.033
- Light Cornflower Blue #98C1D9 ΔE 0.037
- Carolina Blue #8AB8FE ΔE 0.039
- Light Grey Blue #9DBCD4 ΔE 0.042
- Light Sky Blue #87CEFA ΔE 0.042
- Sky Blue #87CEEB ΔE 0.043
- Vivid Sky Blue #4CC9F0 ΔE 0.045
Use #81BFEB 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.