#81A1D5
Closest named color: Greyblue (#77A1B5). oklch(70.5% 0.085 259.9), rgb(129, 161, 213).
Aa
Black text reads best on this color (7.99:1).
About this color
#81A1D5 is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.085 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.051 away. Black text reads best on it, at 7.99:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.99:1 |
| White text | 2.62:1 |
Values
| HEX | #81A1D5 |
| RGB | rgb(129, 161, 213) |
| HSL | hsl(217, 50%, 67%) |
| OKLCH | oklch(70.5% 0.085 259.9) |
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 #81A1D5 | 2.62:1 | Fails | Lc -56.3 | Large or bold text, headings |
| Black text on #81A1D5 | 7.99:1 | AAA | Lc 52.8 | Large or bold text, headings |
| #81A1D5 text on white | 2.62:1 | Fails | Lc 51.2 | Large or bold text, headings |
| #81A1D5 text on black | 7.99:1 | AAA | Lc -50.7 | 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
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300
#ADC2E3
oklch(80.9% 0.052 259.4)
-
Step 400
400 (this color)
#81A1D5
oklch(70.5% 0.085 259.9)
-
Step 500
500
#628ACB
oklch(63.2% 0.108 259.8)
-
Step 600
600
#4973B7
oklch(55.7% 0.116 259.6)
-
Step 700
700
#3A609E
oklch(49.2% 0.109 259.7)
-
Step 800
800
#304E80
oklch(42.6% 0.091 260.1)
-
Step 900
900
#2B4167
oklch(37.6% 0.071 260.8)
-
Step 950
950
#19273C
oklch(27.1% 0.044 258.3)
#81A1D5 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) | #8EA4D7 | 0.019 |
| Deuteranopia (no green cones) | #859CD4 | 0.014 |
| Tritanopia (no blue cones) | #65ACB3 | 0.075 |
| Achromatopsia (no color) | #A0A0A0 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81A1D5
#81A1D5
oklch(70.5% 0.085 259.9)
- #BC9A61
#BC9A61
oklch(70.4% 0.085 79.6)
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 #81A1D5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.051
- Bluegrey #85A3B2 ΔE 0.055
- Bluey Grey #89A0B0 ΔE 0.055
- Cool Gray #8D99AE ΔE 0.056
- Cool Steel #97A7B3 ΔE 0.063
- Cornflower Blue #6495ED ΔE 0.064
- Periwinkle Blue #8F99FB ΔE 0.068
- Perrywinkle #8F8CE7 ΔE 0.069
Use #81A1D5 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.