#81ADCF
Closest named color: Bluegrey (#85A3B2). oklch(72.8% 0.069 242.1), rgb(129, 173, 207).
Aa
Black text reads best on this color (8.81:1).
About this color
#81ADCF is a medium-light, muted blue. In OKLCH its lightness is 73%, its chroma 0.069 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegrey (#85A3B2), ΔE 0.043 away. Black text reads best on it, at 8.81:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Bluegrey (#85A3B2) |
| Black text | 8.81:1 |
| White text | 2.38:1 |
Values
| HEX | #81ADCF |
| RGB | rgb(129, 173, 207) |
| HSL | hsl(206, 45%, 66%) |
| OKLCH | oklch(72.8% 0.069 242.1) |
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 #81ADCF | 2.38:1 | Fails | Lc -51.9 | Large or bold text, headings |
| Black text on #81ADCF | 8.81:1 | AAA | Lc 57.1 | Large or bold text, headings |
| #81ADCF text on white | 2.38:1 | Fails | Lc 46.9 | Large or bold text, headings |
| #81ADCF text on black | 8.81:1 | AAA | Lc -55.1 | 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
#CCDBE8
oklch(88.4% 0.024 244.2)
-
Step 300
300
#A9C5DA
oklch(80.9% 0.042 240.5)
-
Step 400
400 (this color)
#81ADCF
oklch(72.8% 0.069 242.1)
-
Step 500
500
#5790BA
oklch(63.1% 0.087 241.9)
-
Step 600
600
#3A79A6
oklch(55.5% 0.096 242.3)
-
Step 700
700
#2C668E
oklch(49% 0.088 241.8)
-
Step 800
800
#265374
oklch(42.6% 0.074 243)
-
Step 900
900
#24455D
oklch(37.7% 0.057 241.9)
-
Step 950
950
#162937
oklch(27.2% 0.036 241.7)
#81ADCF 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) | #9FADD1 | 0.037 |
| Deuteranopia (no green cones) | #94A4CE | 0.031 |
| Tritanopia (no blue cones) | #66B5B8 | 0.055 |
| Achromatopsia (no color) | #A8A8A8 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81ADCF
#81ADCF
oklch(72.8% 0.069 242.1)
- #C79E7B
#C79E7B
oklch(72.8% 0.068 61.9)
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 #81ADCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegrey #85A3B2 ΔE 0.043
- Cool Steel #97A7B3 ΔE 0.044
- Greyblue #77A1B5 ΔE 0.047
- Bluey Grey #89A0B0 ΔE 0.049
- Light Grey Blue #9DBCD4 ΔE 0.056
- Cool Grey #95A3A6 ΔE 0.059
- Cool Gray #8D99AE ΔE 0.061
- Light Cornflower Blue #98C1D9 ΔE 0.063
Use #81ADCF 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.