#81ACE2
Closest named color: Carolina Blue (#8AB8FE). oklch(73.4% 0.092 254.5), rgb(129, 172, 226).
Aa
Black text reads best on this color (8.93:1).
About this color
#81ACE2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.092 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.048 away. Black text reads best on it, at 8.93:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 8.93:1 |
| White text | 2.35:1 |
Values
| HEX | #81ACE2 |
| RGB | rgb(129, 172, 226) |
| HSL | hsl(213, 63%, 70%) |
| OKLCH | oklch(73.4% 0.092 254.5) |
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 #81ACE2 | 2.35:1 | Fails | Lc -51.2 | Large or bold text, headings |
| Black text on #81ACE2 | 8.93:1 | AAA | Lc 57.7 | Large or bold text, headings |
| #81ACE2 text on white | 2.35:1 | Fails | Lc 46.3 | Large or bold text, headings |
| #81ACE2 text on black | 8.93:1 | AAA | Lc -55.8 | 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
#E3EBF5
oklch(93.7% 0.016 253.9)
-
Step 200
200
#CBDBEE
oklch(88.5% 0.031 252.7)
-
Step 300
300
#A8C3E6
oklch(80.9% 0.058 255)
-
Step 400
400 (this color)
#81ACE2
oklch(73.4% 0.092 254.5)
-
Step 500
500
#558CCF
oklch(63.2% 0.117 254.3)
-
Step 600
600
#3975BC
oklch(55.7% 0.127 254.2)
-
Step 700
700
#2B62A2
oklch(49.2% 0.118 254.1)
-
Step 800
800
#255083
oklch(42.7% 0.098 254.3)
-
Step 900
900
#234369
oklch(37.8% 0.076 253.9)
-
Step 950
950
#15273E
oklch(27% 0.049 255.2)
#81ACE2 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) | #98AEE4 | 0.029 |
| Deuteranopia (no green cones) | #8CA5E1 | 0.021 |
| Tritanopia (no blue cones) | #5CB8BE | 0.081 |
| Achromatopsia (no color) | #A9A9A9 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81ACE2
#81ACE2
oklch(73.4% 0.092 254.5)
- #CBA166
#CBA166
oklch(73.5% 0.091 75)
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 #81ACE2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.048
- Light Grey Blue #9DBCD4 ΔE 0.065
- Bluegrey #85A3B2 ΔE 0.068
- Greyblue #77A1B5 ΔE 0.069
- Cool Steel #97A7B3 ΔE 0.069
- Periwinkle Blue #8F99FB ΔE 0.071
- Light Cornflower Blue #98C1D9 ΔE 0.071
- Bluey Grey #89A0B0 ΔE 0.072
Use #81ACE2 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.