#81A5BB
Closest named color: Bluegrey (#85A3B2). oklch(70.3% 0.051 235.3), rgb(129, 165, 187).
Aa
Black text reads best on this color (8.03:1).
About this color
#81A5BB is a medium-light, muted blue. In OKLCH its lightness is 70%, its chroma 0.051 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegrey (#85A3B2), ΔE 0.013 away. Black text reads best on it, at 8.03:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Bluegrey (#85A3B2) |
| Black text | 8.03:1 |
| White text | 2.61:1 |
Values
| HEX | #81A5BB |
| RGB | rgb(129, 165, 187) |
| HSL | hsl(203, 30%, 62%) |
| OKLCH | oklch(70.3% 0.051 235.3) |
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 #81A5BB | 2.61:1 | Fails | Lc -56.1 | Large or bold text, headings |
| Black text on #81A5BB | 8.03:1 | AAA | Lc 53.0 | Large or bold text, headings |
| #81A5BB text on white | 2.61:1 | Fails | Lc 51.0 | Large or bold text, headings |
| #81A5BB text on black | 8.03:1 | AAA | Lc -50.9 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AEC4D3
oklch(80.8% 0.032 237.7)
-
Step 400
400 (this color)
#81A5BB
oklch(70.3% 0.051 235.3)
-
Step 500
500
#6290AC
oklch(63.1% 0.065 235.9)
-
Step 600
600
#487A97
oklch(55.6% 0.07 235.4)
-
Step 700
700
#396781
oklch(49.2% 0.066 235)
-
Step 800
800
#2F5469
oklch(42.7% 0.055 234.9)
-
Step 900
900
#2A4555
oklch(37.6% 0.043 235.6)
-
Step 950
950
#192932
oklch(27.1% 0.027 233.8)
#81A5BB 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) | #9BA4BC | 0.033 |
| Deuteranopia (no green cones) | #939DBB | 0.030 |
| Tritanopia (no blue cones) | #6FABAC | 0.038 |
| Achromatopsia (no color) | #A0A0A0 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81A5BB
#81A5BB
oklch(70.3% 0.051 235.3)
- #B99881
#B99881
oklch(70.4% 0.051 56.6)
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 #81A5BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegrey #85A3B2 ΔE 0.013
- Greyblue #77A1B5 ΔE 0.019
- Bluey Grey #89A0B0 ΔE 0.019
- Cool Steel #97A7B3 ΔE 0.031
- Cool Gray #8D99AE ΔE 0.034
- Cool Grey #95A3A6 ΔE 0.036
- Pewter #96A8A1 ΔE 0.048
- Cadet Blue #5F9EA0 ΔE 0.060
Use #81A5BB 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.