#81A2EC
Closest named color: Periwinkle Blue (#8F99FB). oklch(71.8% 0.115 265.3), rgb(129, 162, 236).
Aa
Black text reads best on this color (8.31:1).
About this color
#81A2EC is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.115 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.039 away. Black text reads best on it, at 8.31:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.31:1 |
| White text | 2.52:1 |
Values
| HEX | #81A2EC |
| RGB | rgb(129, 162, 236) |
| HSL | hsl(221, 74%, 72%) |
| OKLCH | oklch(71.8% 0.115 265.3) |
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 #81A2EC | 2.52:1 | Fails | Lc -54.5 | Large or bold text, headings |
| Black text on #81A2EC | 8.31:1 | AAA | Lc 54.6 | Large or bold text, headings |
| #81A2EC text on white | 2.52:1 | Fails | Lc 49.4 | Large or bold text, headings |
| #81A2EC text on black | 8.31:1 | AAA | Lc -52.5 | Large or bold text, headings |
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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CCD9F4
oklch(88.4% 0.04 265.1)
-
Step 300
300
#AAC0F0
oklch(80.8% 0.072 265.6)
-
Step 400
400 (this color)
#81A2EC
oklch(71.8% 0.115 265.3)
-
Step 500
500
#5E85E2
oklch(63.2% 0.147 265.3)
-
Step 600
600
#456CCF
oklch(55.5% 0.159 265.4)
-
Step 700
700
#375AB4
oklch(49.2% 0.149 265.3)
-
Step 800
800
#2E4A91
oklch(42.7% 0.122 265.4)
-
Step 900
900
#283E74
oklch(37.6% 0.096 265.4)
-
Step 950
950
#182544
oklch(27% 0.061 265.4)
#81A2EC 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) | #87A8EF | 0.018 |
| Deuteranopia (no green cones) | #7C9EEA | 0.013 |
| Tritanopia (no blue cones) | #58B2BC | 0.104 |
| Achromatopsia (no color) | #A3A3A3 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81A2EC
#81A2EC
oklch(71.8% 0.115 265.3)
- #C49E46
#C49E46
oklch(71.7% 0.115 85.6)
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 #81A2EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.039
- Cornflower Blue #6495ED ΔE 0.051
- Perrywinkle #8F8CE7 ΔE 0.057
- Carolina Blue #8AB8FE ΔE 0.061
- Chefchaouen Blue #4895EF ΔE 0.072
- Lavender Blue #8B88F8 ΔE 0.073
- Soft Blue #6488EA ΔE 0.081
- Greyblue #77A1B5 ΔE 0.084
Use #81A2EC 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.