#81ADEA
Closest named color: Carolina Blue (#8AB8FE). oklch(74% 0.101 256.7), rgb(129, 173, 234).
Aa
Black text reads best on this color (9.09:1).
About this color
#81ADEA is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.101 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.039 away. Black text reads best on it, at 9.09:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.09:1 |
| White text | 2.30:1 |
Values
| HEX | #81ADEA |
| RGB | rgb(129, 173, 234) |
| HSL | hsl(215, 71%, 71%) |
| OKLCH | oklch(74% 0.101 256.7) |
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 #81ADEA | 2.30:1 | Fails | Lc -50.3 | Large or bold text, headings |
| Black text on #81ADEA | 9.09:1 | AAA | Lc 58.5 | Large or bold text, headings |
| #81ADEA text on white | 2.30:1 | Fails | Lc 45.4 | Large or bold text, headings |
| #81ADEA text on black | 9.09:1 | AAA | Lc -56.7 | 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
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDBF1
oklch(88.6% 0.035 256.3)
-
Step 300
300
#A7C3EA
oklch(81% 0.063 256.7)
-
Step 400
400 (this color)
#81ADEA
oklch(74% 0.101 256.7)
-
Step 500
500
#538AD6
oklch(63% 0.129 256.8)
-
Step 600
600
#3773C3
oklch(55.6% 0.139 256.5)
-
Step 700
700
#2960A9
oklch(49.1% 0.131 256.6)
-
Step 800
800
#234F89
oklch(42.8% 0.108 256.4)
-
Step 900
900
#22426D
oklch(37.7% 0.083 256.4)
-
Step 950
950
#142740
oklch(27% 0.053 255.8)
#81ADEA 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) | #96B0ED | 0.028 |
| Deuteranopia (no green cones) | #8AA6E9 | 0.020 |
| Tritanopia (no blue cones) | #58BAC2 | 0.088 |
| Achromatopsia (no color) | #ABABAB | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81ADEA
#81ADEA
oklch(74% 0.101 256.7)
- #CFA25E
#CFA25E
oklch(74% 0.101 76.5)
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 #81ADEA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.039
- Periwinkle Blue #8F99FB ΔE 0.065
- Pastel Blue #A2BFFE ΔE 0.068
- Light Grey Blue #9DBCD4 ΔE 0.069
- Lightblue #7BC8F6 ΔE 0.070
- Light Cornflower Blue #98C1D9 ΔE 0.073
- Sky #82CAFC ΔE 0.076
- Deep Sky Blue #00BFFF ΔE 0.077
Use #81ADEA 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.