#81ADD2
Closest named color: Bluegrey (#85A3B2). oklch(73% 0.072 244.4), rgb(129, 173, 210).
Aa
Black text reads best on this color (8.84:1).
About this color
#81ADD2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.072 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegrey (#85A3B2), ΔE 0.047 away. Black text reads best on it, at 8.84:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Bluegrey (#85A3B2) |
| Black text | 8.84:1 |
| White text | 2.37:1 |
Values
| HEX | #81ADD2 |
| RGB | rgb(129, 173, 210) |
| HSL | hsl(207, 47%, 66%) |
| OKLCH | oklch(73% 0.072 244.4) |
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 #81ADD2 | 2.37:1 | Fails | Lc -51.7 | Large or bold text, headings |
| Black text on #81ADD2 | 8.84:1 | AAA | Lc 57.2 | Large or bold text, headings |
| #81ADD2 text on white | 2.37:1 | Fails | Lc 46.8 | Large or bold text, headings |
| #81ADD2 text on black | 8.84:1 | AAA | Lc -55.3 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#A9C4DC
oklch(80.8% 0.045 245.2)
-
Step 400
400 (this color)
#81ADD2
oklch(73% 0.072 244.4)
-
Step 500
500
#578FBD
oklch(63% 0.091 244.8)
-
Step 600
600
#3A79A9
oklch(55.6% 0.099 244)
-
Step 700
700
#2C6691
oklch(49.2% 0.092 243.7)
-
Step 800
800
#265376
oklch(42.7% 0.077 244.5)
-
Step 900
900
#24455F
oklch(37.8% 0.059 244.1)
-
Step 950
950
#162838
oklch(26.9% 0.038 246.6)
#81ADD2 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) | #9EADD4 | 0.036 |
| Deuteranopia (no green cones) | #93A4D1 | 0.031 |
| Tritanopia (no blue cones) | #64B6B9 | 0.060 |
| Achromatopsia (no color) | #A8A8A8 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81ADD2
#81ADD2
oklch(73% 0.072 244.4)
- #C89E78
#C89E78
oklch(72.9% 0.072 63.5)
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 #81ADD2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegrey #85A3B2 ΔE 0.047
- Cool Steel #97A7B3 ΔE 0.048
- Greyblue #77A1B5 ΔE 0.050
- Bluey Grey #89A0B0 ΔE 0.052
- Light Grey Blue #9DBCD4 ΔE 0.056
- Light Cornflower Blue #98C1D9 ΔE 0.063
- Cool Grey #95A3A6 ΔE 0.063
- Cool Gray #8D99AE ΔE 0.064
Use #81ADD2 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.