#4F61AB
Closest named color: French Blue (#436BAD). oklch(51.4% 0.119 271.4), rgb(79, 97, 171).
Aa
White text reads best on this color (5.78:1).
About this color
#4F61AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.119 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.029 away. White text reads best on it, at 5.78:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.63:1 |
| White text | 5.78:1 |
Values
| HEX | #4F61AB |
| RGB | rgb(79, 97, 171) |
| HSL | hsl(228, 37%, 49%) |
| OKLCH | oklch(51.4% 0.119 271.4) |
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 #4F61AB | 5.78:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #4F61AB | 3.63:1 | AA large text | Lc 25.3 | Dividers and decoration only |
| #4F61AB text on white | 5.78:1 | AA | Lc 78.8 | Fine for body text |
| #4F61AB text on black | 3.63:1 | AA large text | Lc -23.0 | 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 700.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D1D8EF
oklch(88.4% 0.033 272.2)
-
Step 300
300
#B3BFE7
oklch(80.9% 0.058 272)
-
Step 400
400
#8C9DDB
oklch(70.7% 0.093 272.1)
-
Step 500
500
#7084D1
oklch(63.1% 0.118 271.6)
-
Step 600
600
#596DBE
oklch(55.7% 0.128 271.3)
-
Step 700
700 (this color)
#4F61AB
oklch(51.4% 0.119 271.4)
-
Step 800
800
#3C4A85
oklch(42.7% 0.099 271.6)
-
Step 900
900
#333E6A
oklch(37.6% 0.077 271.7)
-
Step 950
950
#1E253E
oklch(27.1% 0.048 271.1)
#4F61AB 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) | #426AAE | 0.027 |
| Deuteranopia (no green cones) | #3762A9 | 0.028 |
| Tritanopia (no blue cones) | #22717D | 0.107 |
| Achromatopsia (no color) | #666666 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F61AB
#4F61AB
oklch(51.4% 0.119 271.4)
- #7D6400
#7D6400
oklch(51.3% 0.105 91.6)
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 #4F61AB, closest first.
No curated palette has a color within ΔE 0.04 of #4F61AB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.029
- Dusky Blue #475F94 ΔE 0.039
- Mid Blue #276AB3 ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.050
- Flat Blue #3C73A8 ΔE 0.053
- Iris #6258C4 ΔE 0.054
- Muted Blue #3B719F ΔE 0.056
- Denim #3B638C ΔE 0.058
Use #4F61AB 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.