#81A0BF
Closest named color: Greyblue (#77A1B5). oklch(69.4% 0.057 248.7), rgb(129, 160, 191).
Aa
Black text reads best on this color (7.71:1).
About this color
#81A0BF is a medium-light, muted blue. In OKLCH its lightness is 69%, its chroma 0.057 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.021 away. Black text reads best on it, at 7.71:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.71:1 |
| White text | 2.72:1 |
Values
| HEX | #81A0BF |
| RGB | rgb(129, 160, 191) |
| HSL | hsl(210, 33%, 63%) |
| OKLCH | oklch(69.4% 0.057 248.7) |
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 #81A0BF | 2.72:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #81A0BF | 7.71:1 | AAA | Lc 51.3 | Large or bold text, headings |
| #81A0BF text on white | 2.72:1 | Fails | Lc 52.7 | Large or bold text, headings |
| #81A0BF text on black | 7.71:1 | AAA | Lc -49.2 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EBF1
oklch(93.7% 0.01 247.9)
-
Step 200
200
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300
#AFC3D7
oklch(80.8% 0.036 248.3)
-
Step 400
400 (this color)
#81A0BF
oklch(69.4% 0.057 248.7)
-
Step 500
500
#668DB4
oklch(63% 0.073 249.1)
-
Step 600
600
#4D77A0
oklch(55.6% 0.08 248.9)
-
Step 700
700
#3E6489
oklch(49.1% 0.074 248.9)
-
Step 800
800
#33526F
oklch(42.8% 0.061 247.8)
-
Step 900
900
#2D445A
oklch(37.8% 0.048 248.1)
-
Step 950
950
#1B2835
oklch(27.1% 0.03 249)
#81A0BF 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) | #94A0C1 | 0.025 |
| Deuteranopia (no green cones) | #8D9ABE | 0.021 |
| Tritanopia (no blue cones) | #6EA7AA | 0.048 |
| Achromatopsia (no color) | #9D9D9D | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81A0BF
#81A0BF
oklch(69.4% 0.057 248.7)
- #B49676
#B49676
oklch(69.2% 0.057 68.5)
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 #81A0BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.021
- Bluey Grey #89A0B0 ΔE 0.024
- Bluegrey #85A3B2 ΔE 0.024
- Cool Gray #8D99AE ΔE 0.029
- Cool Steel #97A7B3 ΔE 0.042
- Cool Grey #95A3A6 ΔE 0.047
- Silver Lake Blue #778DA9 ΔE 0.058
- Pewter #96A8A1 ΔE 0.061
Use #81A0BF 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.