#73B4FB
Closest named color: Carolina Blue (#8AB8FE). oklch(75.5% 0.123 251.7), rgb(115, 180, 251).
Aa
Black text reads best on this color (9.65:1).
About this color
#73B4FB is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.123 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.028 away. Black text reads best on it, at 9.65:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.65:1 |
| White text | 2.17:1 |
Values
| HEX | #73B4FB |
| RGB | rgb(115, 180, 251) |
| HSL | hsl(211, 94%, 72%) |
| OKLCH | oklch(75.5% 0.123 251.7) |
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 #73B4FB | 2.17:1 | Fails | Lc -47.3 | Large or bold text, headings |
| Black text on #73B4FB | 9.65:1 | AAA | Lc 61.3 | Content text, not long reading |
| #73B4FB text on white | 2.17:1 | Fails | Lc 42.6 | Non-text elements, placeholder text |
| #73B4FB text on black | 9.65:1 | AAA | Lc -59.6 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C5DCF5
oklch(88.5% 0.042 250.5)
-
Step 300
300
#9DC5F1
oklch(81% 0.076 251.2)
-
Step 400
400 (this color)
#73B4FB
oklch(75.5% 0.123 251.7)
-
Step 500
500
#338CE4
oklch(63.1% 0.157 251.6)
-
Step 600
600
#0074CF
oklch(55.5% 0.165 251.7)
-
Step 700
700
#0061B0
oklch(49% 0.147 252)
-
Step 800
800
#005091
oklch(42.8% 0.126 251.5)
-
Step 900
900
#0C4376
oklch(37.8% 0.102 251.6)
-
Step 950
950
#0A2745
oklch(26.9% 0.066 252.2)
#73B4FB 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) | #97B7FE | 0.042 |
| Deuteranopia (no green cones) | #85AAFA | 0.030 |
| Tritanopia (no blue cones) | #15C4CD | 0.107 |
| Achromatopsia (no color) | #B0B0B0 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73B4FB
#73B4FB
oklch(75.5% 0.123 251.7)
- #E0A250
#E0A250
oklch(75.6% 0.123 71.6)
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 #73B4FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.028
- Deep Sky Blue #00BFFF ΔE 0.057
- Lightblue #7BC8F6 ΔE 0.059
- Pastel Blue #A2BFFE ΔE 0.063
- Sky #82CAFC ΔE 0.063
- Vivid Sky Blue #4CC9F0 ΔE 0.067
- Periwinkle Blue #8F99FB ΔE 0.074
- Bright Sky Blue #02CCFE ΔE 0.075
Use #73B4FB 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.