#81ADDC
Closest named color: Carolina Blue (#8AB8FE). oklch(73.4% 0.083 250.6), rgb(129, 173, 220).
Aa
Black text reads best on this color (8.94:1).
About this color
#81ADDC is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.083 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.054 away. Black text reads best on it, at 8.94:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 8.94:1 |
| White text | 2.34:1 |
Values
| HEX | #81ADDC |
| RGB | rgb(129, 173, 220) |
| HSL | hsl(211, 57%, 68%) |
| OKLCH | oklch(73.4% 0.083 250.6) |
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 #81ADDC | 2.34:1 | Fails | Lc -51.2 | Large or bold text, headings |
| Black text on #81ADDC | 8.94:1 | AAA | Lc 57.8 | Large or bold text, headings |
| #81ADDC text on white | 2.34:1 | Fails | Lc 46.2 | Large or bold text, headings |
| #81ADDC text on black | 8.94:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CBDBEC
oklch(88.5% 0.029 249.8)
-
Step 300
300
#A8C4E2
oklch(81% 0.052 250.3)
-
Step 400
400 (this color)
#81ADDC
oklch(73.4% 0.083 250.6)
-
Step 500
500
#558DC8
oklch(63% 0.107 251)
-
Step 600
600
#3977B4
oklch(55.7% 0.115 250.3)
-
Step 700
700
#2B639B
oklch(49% 0.108 251)
-
Step 800
800
#25517E
oklch(42.7% 0.09 251.2)
-
Step 900
900
#234465
oklch(37.8% 0.069 250.1)
-
Step 950
950
#15283B
oklch(27.1% 0.044 249.7)
#81ADDC 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) | #9BAEDE | 0.032 |
| Deuteranopia (no green cones) | #90A5DB | 0.026 |
| Tritanopia (no blue cones) | #5FB8BD | 0.072 |
| Achromatopsia (no color) | #A9A9A9 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81ADDC
#81ADDC
oklch(73.4% 0.083 250.6)
- #CBA06E
#CBA06E
oklch(73.4% 0.084 70.1)
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 #81ADDC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.054
- Light Grey Blue #9DBCD4 ΔE 0.059
- Bluegrey #85A3B2 ΔE 0.060
- Cool Steel #97A7B3 ΔE 0.061
- Greyblue #77A1B5 ΔE 0.062
- Bluey Grey #89A0B0 ΔE 0.064
- Light Cornflower Blue #98C1D9 ΔE 0.066
- Lightblue #7BC8F6 ΔE 0.072
Use #81ADDC 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.