#81A3D4
Closest named color: Greyblue (#77A1B5). oklch(70.9% 0.081 257.5), rgb(129, 163, 212).
Aa
Black text reads best on this color (8.12:1).
About this color
#81A3D4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.081 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.048 away. Black text reads best on it, at 8.12:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.12:1 |
| White text | 2.58:1 |
Values
| HEX | #81A3D4 |
| RGB | rgb(129, 163, 212) |
| HSL | hsl(215, 49%, 67%) |
| OKLCH | oklch(70.9% 0.081 257.5) |
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 #81A3D4 | 2.58:1 | Fails | Lc -55.6 | Large or bold text, headings |
| Black text on #81A3D4 | 8.12:1 | AAA | Lc 53.5 | Large or bold text, headings |
| #81A3D4 text on white | 2.58:1 | Fails | Lc 50.5 | Large or bold text, headings |
| #81A3D4 text on black | 8.12:1 | AAA | Lc -51.4 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEC
oklch(88.5% 0.028 258.4)
-
Step 300
300
#ACC2E2
oklch(80.8% 0.051 257.7)
-
Step 400
400 (this color)
#81A3D4
oklch(70.9% 0.081 257.5)
-
Step 500
500
#608BC8
oklch(63.1% 0.104 257.2)
-
Step 600
600
#4774B5
oklch(55.7% 0.113 257.6)
-
Step 700
700
#38619B
oklch(49.1% 0.104 257.3)
-
Step 800
800
#2F4F7E
oklch(42.6% 0.087 257.9)
-
Step 900
900
#2A4265
oklch(37.7% 0.067 257.7)
-
Step 950
950
#19273B
oklch(27% 0.042 257.3)
#81A3D4 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) | #91A5D6 | 0.022 |
| Deuteranopia (no green cones) | #889DD3 | 0.017 |
| Tritanopia (no blue cones) | #65AEB4 | 0.072 |
| Achromatopsia (no color) | #A1A1A1 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81A3D4
#81A3D4
oklch(70.9% 0.081 257.5)
- #BE9B66
#BE9B66
oklch(70.9% 0.082 77.2)
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 #81A3D4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.048
- Bluegrey #85A3B2 ΔE 0.051
- Bluey Grey #89A0B0 ΔE 0.052
- Cool Gray #8D99AE ΔE 0.055
- Cool Steel #97A7B3 ΔE 0.059
- Cornflower Blue #6495ED ΔE 0.069
- Cool Grey #95A3A6 ΔE 0.071
- Periwinkle Blue #8F99FB ΔE 0.072
Use #81A3D4 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.