#81ADE2
Closest named color: Carolina Blue (#8AB8FE). oklch(73.6% 0.091 253.5), rgb(129, 173, 226).
Aa
Black text reads best on this color (9.00:1).
About this color
#81ADE2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.091 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.047 away. Black text reads best on it, at 9.00:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.00:1 |
| White text | 2.33:1 |
Values
| HEX | #81ADE2 |
| RGB | rgb(129, 173, 226) |
| HSL | hsl(213, 63%, 70%) |
| OKLCH | oklch(73.6% 0.091 253.5) |
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 #81ADE2 | 2.33:1 | Fails | Lc -50.8 | Large or bold text, headings |
| Black text on #81ADE2 | 9.00:1 | AAA | Lc 58.1 | Large or bold text, headings |
| #81ADE2 text on white | 2.33:1 | Fails | Lc 45.9 | Large or bold text, headings |
| #81ADE2 text on black | 9.00:1 | AAA | Lc -56.2 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CBDBEE
oklch(88.5% 0.031 252.7)
-
Step 300
300
#A8C3E5
oklch(80.9% 0.057 254.3)
-
Step 400
400 (this color)
#81ADE2
oklch(73.6% 0.091 253.5)
-
Step 500
500
#548CCE
oklch(63.1% 0.116 253.6)
-
Step 600
600
#3875BB
oklch(55.6% 0.126 253.7)
-
Step 700
700
#2A62A1
oklch(49.1% 0.117 253.5)
-
Step 800
800
#245083
oklch(42.7% 0.098 253.9)
-
Step 900
900
#224369
oklch(37.7% 0.076 253.3)
-
Step 950
950
#15273D
oklch(26.9% 0.048 254.2)
#81ADE2 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) | #99AFE4 | 0.030 |
| Deuteranopia (no green cones) | #8DA5E1 | 0.024 |
| Tritanopia (no blue cones) | #5CB9BF | 0.080 |
| Achromatopsia (no color) | #AAAAAA | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81ADE2
#81ADE2
oklch(73.6% 0.091 253.5)
- #CCA167
#CCA167
oklch(73.6% 0.091 73.9)
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 #81ADE2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.047
- Light Grey Blue #9DBCD4 ΔE 0.063
- Light Cornflower Blue #98C1D9 ΔE 0.068
- Bluegrey #85A3B2 ΔE 0.068
- Cool Steel #97A7B3 ΔE 0.069
- Greyblue #77A1B5 ΔE 0.069
- Lightblue #7BC8F6 ΔE 0.071
- Bluey Grey #89A0B0 ΔE 0.072
Use #81ADE2 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.