#81A4E1
Closest named color: Periwinkle Blue (#8F99FB). oklch(71.7% 0.098 261.2), rgb(129, 164, 225).
Aa
Black text reads best on this color (8.33:1).
About this color
#81A4E1 is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.098 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.056 away. Black text reads best on it, at 8.33:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.33:1 |
| White text | 2.52:1 |
Values
| HEX | #81A4E1 |
| RGB | rgb(129, 164, 225) |
| HSL | hsl(218, 62%, 69%) |
| OKLCH | oklch(71.7% 0.098 261.2) |
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 #81A4E1 | 2.52:1 | Fails | Lc -54.5 | Large or bold text, headings |
| Black text on #81A4E1 | 8.33:1 | AAA | Lc 54.6 | Large or bold text, headings |
| #81A4E1 text on white | 2.52:1 | Fails | Lc 49.4 | Large or bold text, headings |
| #81A4E1 text on black | 8.33:1 | AAA | Lc -52.6 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CDDAF0
oklch(88.5% 0.033 261)
-
Step 300
300
#ABC2E9
oklch(81% 0.061 261)
-
Step 400
400 (this color)
#81A4E1
oklch(71.7% 0.098 261.2)
-
Step 500
500
#5D88D5
oklch(63% 0.126 261.3)
-
Step 600
600
#4471C2
oklch(55.7% 0.136 261.2)
-
Step 700
700
#365EA7
oklch(49.1% 0.126 261.4)
-
Step 800
800
#2D4D88
oklch(42.7% 0.105 261.6)
-
Step 900
900
#28416C
oklch(37.7% 0.08 260.6)
-
Step 950
950
#182640
oklch(27% 0.052 262)
#81A4E1 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) | #8EA8E4 | 0.021 |
| Deuteranopia (no green cones) | #839FE0 | 0.013 |
| Tritanopia (no blue cones) | #5EB1B9 | 0.088 |
| Achromatopsia (no color) | #A3A3A3 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81A4E1
#81A4E1
oklch(71.7% 0.098 261.2)
- #C39D59
#C39D59
oklch(71.6% 0.098 80.7)
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 #81A4E1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.056
- Cornflower Blue #6495ED ΔE 0.061
- Carolina Blue #8AB8FE ΔE 0.062
- Perrywinkle #8F8CE7 ΔE 0.067
- Greyblue #77A1B5 ΔE 0.067
- Bluegrey #85A3B2 ΔE 0.070
- Bluey Grey #89A0B0 ΔE 0.071
- Cool Gray #8D99AE ΔE 0.073
Use #81A4E1 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.