#81BDFE
Closest named color: Carolina Blue (#8AB8FE). oklch(78.3% 0.112 251.3), rgb(129, 189, 254).
Aa
Black text reads best on this color (10.64:1).
About this color
#81BDFE is a light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.112 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.015 away. Black text reads best on it, at 10.64:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.64:1 |
| White text | 1.97:1 |
Values
| HEX | #81BDFE |
| RGB | rgb(129, 189, 254) |
| HSL | hsl(211, 98%, 75%) |
| OKLCH | oklch(78.3% 0.112 251.3) |
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 #81BDFE | 1.97:1 | Fails | Lc -42.3 | Non-text elements, placeholder text |
| Black text on #81BDFE | 10.64:1 | AAA | Lc 66.0 | Content text, not long reading |
| #81BDFE text on white | 1.97:1 | Fails | Lc 37.9 | Non-text elements, placeholder text |
| #81BDFE text on black | 10.64:1 | AAA | Lc -64.5 | 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
#EFF6FF
oklch(97% 0.014 254.6)
-
Step 100
100
#DBECFF
oklch(93.6% 0.032 251.1)
-
Step 200
200
#BEDDFF
oklch(88.6% 0.058 250.9)
-
Step 300
300 (this color)
#81BDFE
oklch(78.3% 0.112 251.3)
-
Step 400
400
#4BA4FF
oklch(70.6% 0.158 251.5)
-
Step 500
500
#008BF4
oklch(63.1% 0.185 251.3)
-
Step 600
600
#0075CE
oklch(55.7% 0.162 251.1)
-
Step 700
700
#0062AE
oklch(49.1% 0.143 251.1)
-
Step 800
800
#005090
oklch(42.7% 0.125 251.1)
-
Step 900
900
#004279
oklch(37.6% 0.11 251.3)
-
Step 950
950
#00274B
oklch(27% 0.079 251.1)
#81BDFE 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) | #A3BFFF | 0.040 |
| Deuteranopia (no green cones) | #93B3FD | 0.031 |
| Tritanopia (no blue cones) | #45CCD3 | 0.098 |
| Achromatopsia (no color) | #B8B8B8 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81BDFE
#81BDFE
oklch(78.3% 0.112 251.3)
- #E5AC64
#E5AC64
oklch(78.3% 0.112 71.4)
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 #81BDFE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.015
- Lightblue #7BC8F6 ΔE 0.035
- Sky #82CAFC ΔE 0.036
- Pastel Blue #A2BFFE ΔE 0.038
- Light Sky Blue #87CEFA ΔE 0.049
- Vivid Sky Blue #4CC9F0 ΔE 0.059
- Sky Blue #87CEEB ΔE 0.061
- Light Cornflower Blue #98C1D9 ΔE 0.062
Use #81BDFE 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.