#73ADDB
Closest named color: Greyblue (#77A1B5). oklch(72.5% 0.09 243.4), rgb(115, 173, 219).
Aa
Black text reads best on this color (8.72:1).
About this color
#73ADDB is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.090 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.057 away. Black text reads best on it, at 8.72:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.72:1 |
| White text | 2.40:1 |
Values
| HEX | #73ADDB |
| RGB | rgb(115, 173, 219) |
| HSL | hsl(207, 59%, 65%) |
| OKLCH | oklch(72.5% 0.09 243.4) |
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 #73ADDB | 2.40:1 | Fails | Lc -52.3 | Large or bold text, headings |
| Black text on #73ADDB | 8.72:1 | AAA | Lc 56.7 | Large or bold text, headings |
| #73ADDB text on white | 2.40:1 | Fails | Lc 47.3 | Large or bold text, headings |
| #73ADDB text on black | 8.72:1 | AAA | Lc -54.7 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C8DCED
oklch(88.5% 0.032 243.7)
-
Step 300
300
#A2C6E3
oklch(81% 0.056 242.7)
-
Step 400
400 (this color)
#73ADDB
oklch(72.5% 0.09 243.4)
-
Step 500
500
#4290CA
oklch(63% 0.116 243.7)
-
Step 600
600
#1A7AB7
oklch(55.7% 0.126 243.2)
-
Step 700
700
#08669D
oklch(49.1% 0.117 243.4)
-
Step 800
800
#0F537F
oklch(42.6% 0.097 243.6)
-
Step 900
900
#174566
oklch(37.6% 0.075 243.7)
-
Step 950
950
#0F293C
oklch(27.1% 0.048 243)
#73ADDB 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) | #9AADDD | 0.046 |
| Deuteranopia (no green cones) | #8CA2DA | 0.038 |
| Tritanopia (no blue cones) | #43B8BC | 0.075 |
| Achromatopsia (no color) | #A7A7A7 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73ADDB
#73ADDB
oklch(72.5% 0.09 243.4)
- #CF9A69
#CF9A69
oklch(72.6% 0.091 63.4)
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 #73ADDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.057
- Bluegrey #85A3B2 ΔE 0.059
- Carolina Blue #8AB8FE ΔE 0.062
- Bluey Grey #89A0B0 ΔE 0.064
- Cool Steel #97A7B3 ΔE 0.066
- Light Grey Blue #9DBCD4 ΔE 0.069
- Deep Sky Blue #00BFFF ΔE 0.074
- Light Cornflower Blue #98C1D9 ΔE 0.074
Use #73ADDB 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.