#73A8DF
Closest named color: Greyblue (#77A1B5). oklch(71.6% 0.098 250.2), rgb(115, 168, 223).
Aa
Black text reads best on this color (8.39:1).
About this color
#73A8DF is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.098 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.060 away. Black text reads best on it, at 8.39:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.39:1 |
| White text | 2.50:1 |
Values
| HEX | #73A8DF |
| RGB | rgb(115, 168, 223) |
| HSL | hsl(211, 63%, 66%) |
| OKLCH | oklch(71.6% 0.098 250.2) |
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 #73A8DF | 2.50:1 | Fails | Lc -54.1 | Large or bold text, headings |
| Black text on #73A8DF | 8.39:1 | AAA | Lc 55.0 | Large or bold text, headings |
| #73A8DF text on white | 2.50:1 | Fails | Lc 49.0 | Large or bold text, headings |
| #73A8DF text on black | 8.39:1 | AAA | Lc -53.0 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C9DBEF
oklch(88.4% 0.034 251)
-
Step 300
300
#A3C4E8
oklch(80.8% 0.062 250.8)
-
Step 400
400 (this color)
#73A8DF
oklch(71.6% 0.098 250.2)
-
Step 500
500
#488ED2
oklch(63.2% 0.125 249.8)
-
Step 600
600
#2676C0
oklch(55.6% 0.138 250.5)
-
Step 700
700
#1763A5
oklch(49.1% 0.127 250.1)
-
Step 800
800
#175186
oklch(42.7% 0.106 250.3)
-
Step 900
900
#1B446B
oklch(37.8% 0.081 249.9)
-
Step 950
950
#11283F
oklch(27.1% 0.052 250.3)
#73A8DF 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) | #92AAE2 | 0.038 |
| Deuteranopia (no green cones) | #849FDE | 0.029 |
| Tritanopia (no blue cones) | #41B5BB | 0.085 |
| Achromatopsia (no color) | #A4A4A4 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73A8DF
#73A8DF
oklch(71.6% 0.098 250.2)
- #CB985C
#CB985C
oklch(71.5% 0.099 69.7)
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 #73A8DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.060
- Cornflower Blue #6495ED ΔE 0.064
- Carolina Blue #8AB8FE ΔE 0.064
- Bluegrey #85A3B2 ΔE 0.065
- Bluey Grey #89A0B0 ΔE 0.069
- Periwinkle Blue #8F99FB ΔE 0.071
- Cool Steel #97A7B3 ΔE 0.074
- Cool Gray #8D99AE ΔE 0.075
Use #73A8DF 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.