#73ACE4
Closest named color: Carolina Blue (#8AB8FE). oklch(72.7% 0.101 249), rgb(115, 172, 228).
Aa
Black text reads best on this color (8.75:1).
About this color
#73ACE4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.101 and its hue 249°. 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 8.75:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 8.75:1 |
| White text | 2.39:1 |
Values
| HEX | #73ACE4 |
| RGB | rgb(115, 172, 228) |
| HSL | hsl(210, 68%, 67%) |
| OKLCH | oklch(72.7% 0.101 249) |
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 #73ACE4 | 2.39:1 | Fails | Lc -52.1 | Large or bold text, headings |
| Black text on #73ACE4 | 8.75:1 | AAA | Lc 56.8 | Large or bold text, headings |
| #73ACE4 text on white | 2.39:1 | Fails | Lc 47.2 | Large or bold text, headings |
| #73ACE4 text on black | 8.75:1 | AAA | Lc -54.9 | 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
#C8DCF0
oklch(88.6% 0.035 248.2)
-
Step 300
300
#A1C5E8
oklch(80.9% 0.063 247.9)
-
Step 400
400 (this color)
#73ACE4
oklch(72.7% 0.101 249)
-
Step 500
500
#428ED4
oklch(63.1% 0.13 249)
-
Step 600
600
#1C77C1
oklch(55.6% 0.14 248.8)
-
Step 700
700
#0A63A7
oklch(49% 0.132 249.3)
-
Step 800
800
#105187
oklch(42.6% 0.109 249.3)
-
Step 900
900
#17446C
oklch(37.7% 0.084 248.9)
-
Step 950
950
#0F283F
oklch(27% 0.053 248.7)
#73ACE4 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) | #95AEE7 | 0.041 |
| Deuteranopia (no green cones) | #87A2E3 | 0.033 |
| Tritanopia (no blue cones) | #3CB9BF | 0.087 |
| Achromatopsia (no color) | #A7A7A7 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73ACE4
#73ACE4
oklch(72.7% 0.101 249)
- #D09B5D
#D09B5D
oklch(72.7% 0.101 69.4)
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 #73ACE4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.054
- Greyblue #77A1B5 ΔE 0.068
- Deep Sky Blue #00BFFF ΔE 0.070
- Cornflower Blue #6495ED ΔE 0.071
- Bluegrey #85A3B2 ΔE 0.071
- Periwinkle Blue #8F99FB ΔE 0.073
- Bluey Grey #89A0B0 ΔE 0.075
- Light Grey Blue #9DBCD4 ΔE 0.076
Use #73ACE4 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.