#4763BB
Closest named color: French Blue (#436BAD). oklch(52.4% 0.142 268), rgb(71, 99, 187).
Aa
White text reads best on this color (5.56:1).
About this color
#4763BB is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.142 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.034 away. White text reads best on it, at 5.56:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.77:1 |
| White text | 5.56:1 |
Values
| HEX | #4763BB |
| RGB | rgb(71, 99, 187) |
| HSL | hsl(226, 46%, 51%) |
| OKLCH | oklch(52.4% 0.142 268) |
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 #4763BB | 5.56:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #4763BB | 3.77:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #4763BB text on white | 5.56:1 | AA | Lc 77.6 | Fine for body text |
| #4763BB text on black | 3.77:1 | AA large text | Lc -24.2 | Dividers and decoration only |
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 600.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CFD9F1
oklch(88.5% 0.035 267.6)
-
Step 300
300
#AFC0EB
oklch(80.9% 0.064 268.1)
-
Step 400
400
#859EE1
oklch(70.7% 0.103 268.1)
-
Step 500
500
#6785D8
oklch(63.1% 0.13 267.6)
-
Step 600
600 (this color)
#4763BB
oklch(52.4% 0.142 268)
-
Step 700
700
#415AAB
oklch(49.1% 0.133 268.3)
-
Step 800
800
#354A8A
oklch(42.6% 0.109 267.9)
-
Step 900
900
#2E3F6F
oklch(37.8% 0.085 267.5)
-
Step 950
950
#1B2541
oklch(27% 0.054 267.8)
#4763BB 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) | #386EBE | 0.030 |
| Deuteranopia (no green cones) | #2463B9 | 0.032 |
| Tritanopia (no blue cones) | #007786 | 0.121 |
| Achromatopsia (no color) | #686868 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4763BB
#4763BB
oklch(52.4% 0.142 268)
- #846500
#846500
oklch(52.3% 0.107 87.5)
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 #4763BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.034
- Mid Blue #276AB3 ΔE 0.036
- Iris #6258C4 ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.055
- Windows Blue #3778BF ΔE 0.056
- Flat Blue #3C73A8 ΔE 0.059
- Royal Blue #4169E1 ΔE 0.059
- Slate Blue #6A5ACD ΔE 0.059
Use #4763BB 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.