#81AFF4
Closest named color: Carolina Blue (#8AB8FE). oklch(74.9% 0.112 258.3), rgb(129, 175, 244).
Aa
Black text reads best on this color (9.37:1).
About this color
#81AFF4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.112 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.029 away. Black text reads best on it, at 9.37:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.37:1 |
| White text | 2.24:1 |
Values
| HEX | #81AFF4 |
| RGB | rgb(129, 175, 244) |
| HSL | hsl(216, 84%, 73%) |
| OKLCH | oklch(74.9% 0.112 258.3) |
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 #81AFF4 | 2.24:1 | Fails | Lc -48.9 | Large or bold text, headings |
| Black text on #81AFF4 | 9.37:1 | AAA | Lc 59.9 | Large or bold text, headings |
| #81AFF4 text on white | 2.24:1 | Fails | Lc 44.1 | Non-text elements, placeholder text |
| #81AFF4 text on black | 9.37:1 | AAA | Lc -58.1 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF8
oklch(93.7% 0.02 257.5)
-
Step 200
200
#CADAF3
oklch(88.4% 0.039 259.3)
-
Step 300
300
#A5C2EE
oklch(80.8% 0.07 258.6)
-
Step 400
400 (this color)
#81AFF4
oklch(74.9% 0.112 258.3)
-
Step 500
500
#5089DF
oklch(63.2% 0.143 258.4)
-
Step 600
600
#3371CC
oklch(55.6% 0.155 258.2)
-
Step 700
700
#255EB1
oklch(49.1% 0.145 258.3)
-
Step 800
800
#204D8F
oklch(42.6% 0.12 258.3)
-
Step 900
900
#204172
oklch(37.7% 0.093 258.2)
-
Step 950
950
#132643
oklch(26.9% 0.06 258.6)
#81AFF4 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) | #95B3F7 | 0.027 |
| Deuteranopia (no green cones) | #87A8F3 | 0.019 |
| Tritanopia (no blue cones) | #50BEC7 | 0.100 |
| Achromatopsia (no color) | #ADADAD | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81AFF4
#81AFF4
oklch(74.9% 0.112 258.3)
- #D4A456
#D4A456
oklch(74.8% 0.111 77.8)
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 #81AFF4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.029
- Pastel Blue #A2BFFE ΔE 0.061
- Periwinkle Blue #8F99FB ΔE 0.061
- Lightblue #7BC8F6 ΔE 0.067
- Sky #82CAFC ΔE 0.071
- Deep Sky Blue #00BFFF ΔE 0.074
- Light Grey Blue #9DBCD4 ΔE 0.074
- Light Cornflower Blue #98C1D9 ΔE 0.077
Use #81AFF4 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.