#81A1EA
Closest named color: Periwinkle Blue (#8F99FB). oklch(71.5% 0.113 265.6), rgb(129, 161, 234).
Aa
Black text reads best on this color (8.21:1).
About this color
#81A1EA is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.113 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.040 away. Black text reads best on it, at 8.21:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.21:1 |
| White text | 2.55:1 |
Values
| HEX | #81A1EA |
| RGB | rgb(129, 161, 234) |
| HSL | hsl(222, 71%, 71%) |
| OKLCH | oklch(71.5% 0.113 265.6) |
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 #81A1EA | 2.55:1 | Fails | Lc -55.0 | Large or bold text, headings |
| Black text on #81A1EA | 8.21:1 | AAA | Lc 54.1 | Large or bold text, headings |
| #81A1EA text on white | 2.55:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #81A1EA text on black | 8.21:1 | AAA | Lc -52.0 | 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
#CDD9F4
oklch(88.5% 0.039 266.5)
-
Step 300
300
#ABC0EF
oklch(80.8% 0.071 266)
-
Step 400
400 (this color)
#81A1EA
oklch(71.5% 0.113 265.6)
-
Step 500
500
#5F85E0
oklch(63.1% 0.144 265.4)
-
Step 600
600
#466CCE
oklch(55.5% 0.157 265.6)
-
Step 700
700
#385AB2
oklch(49.1% 0.145 265.5)
-
Step 800
800
#2F4A90
oklch(42.7% 0.12 265.7)
-
Step 900
900
#293E73
oklch(37.6% 0.095 265.8)
-
Step 950
950
#182543
oklch(27% 0.059 265)
#81A1EA 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) | #86A7ED | 0.018 |
| Deuteranopia (no green cones) | #7B9EE8 | 0.012 |
| Tritanopia (no blue cones) | #5AB0BB | 0.101 |
| Achromatopsia (no color) | #A2A2A2 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81A1EA
#81A1EA
oklch(71.5% 0.113 265.6)
- #C39D47
#C39D47
oklch(71.4% 0.113 85.2)
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 #81A1EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.040
- Cornflower Blue #6495ED ΔE 0.050
- Perrywinkle #8F8CE7 ΔE 0.055
- Carolina Blue #8AB8FE ΔE 0.064
- Chefchaouen Blue #4895EF ΔE 0.071
- Lavender Blue #8B88F8 ΔE 0.072
- Soft Blue #6488EA ΔE 0.079
- Greyblue #77A1B5 ΔE 0.082
Use #81A1EA 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.