#73AAE4
Closest named color: Carolina Blue (#8AB8FE). oklch(72.3% 0.103 250.7), rgb(115, 170, 228).
Aa
Black text reads best on this color (8.59:1).
About this color
#73AAE4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.103 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.057 away. Black text reads best on it, at 8.59:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 8.59:1 |
| White text | 2.44:1 |
Values
| HEX | #73AAE4 |
| RGB | rgb(115, 170, 228) |
| HSL | hsl(211, 68%, 67%) |
| OKLCH | oklch(72.3% 0.103 250.7) |
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 #73AAE4 | 2.44:1 | Fails | Lc -52.9 | Large or bold text, headings |
| Black text on #73AAE4 | 8.59:1 | AAA | Lc 56.1 | Large or bold text, headings |
| #73AAE4 text on white | 2.44:1 | Fails | Lc 47.9 | Large or bold text, headings |
| #73AAE4 text on black | 8.59:1 | AAA | Lc -54.1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C8DBF1
oklch(88.4% 0.037 252.1)
-
Step 300
300
#A2C4E9
oklch(80.8% 0.064 250.8)
-
Step 400
400 (this color)
#73AAE4
oklch(72.3% 0.103 250.7)
-
Step 500
500
#458DD6
oklch(63.1% 0.132 251)
-
Step 600
600
#2176C3
oklch(55.6% 0.143 250.6)
-
Step 700
700
#1163A8
oklch(49.2% 0.132 250.3)
-
Step 800
800
#135188
oklch(42.7% 0.109 250.3)
-
Step 900
900
#18436D
oklch(37.6% 0.086 250.8)
-
Step 950
950
#102840
oklch(27.1% 0.054 250.5)
#73AAE4 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) | #93ACE7 | 0.039 |
| Deuteranopia (no green cones) | #84A1E3 | 0.029 |
| Tritanopia (no blue cones) | #3CB7BE | 0.089 |
| Achromatopsia (no color) | #A6A6A6 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73AAE4
#73AAE4
oklch(72.3% 0.103 250.7)
- #CE9A5A
#CE9A5A
oklch(72.2% 0.102 70.7)
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 #73AAE4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.057
- Cornflower Blue #6495ED ΔE 0.066
- Greyblue #77A1B5 ΔE 0.068
- Periwinkle Blue #8F99FB ΔE 0.069
- Bluegrey #85A3B2 ΔE 0.072
- Deep Sky Blue #00BFFF ΔE 0.073
- Bluey Grey #89A0B0 ΔE 0.075
- Cool Steel #97A7B3 ΔE 0.078
Use #73AAE4 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.