#4D5FAF
Closest named color: French Blue (#436BAD). oklch(51.1% 0.128 271.7), rgb(77, 95, 175).
Aa
White text reads best on this color (5.87:1).
About this color
#4D5FAF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.128 and its hue 272°. 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 5.87:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.57:1 |
| White text | 5.87:1 |
Values
| HEX | #4D5FAF |
| RGB | rgb(77, 95, 175) |
| HSL | hsl(229, 39%, 49%) |
| OKLCH | oklch(51.1% 0.128 271.7) |
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 #4D5FAF | 5.87:1 | AA | Lc -84.4 | Fine for body text |
| Black text on #4D5FAF | 3.57:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #4D5FAF text on white | 5.87:1 | AA | Lc 79.2 | Fine for body text |
| #4D5FAF text on black | 3.57:1 | AA large text | Lc -22.6 | 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
#E5E9F6
oklch(93.5% 0.018 272.3)
-
Step 200
200
#D1D8F1
oklch(88.5% 0.035 273.2)
-
Step 300
300
#B2BFEA
oklch(80.9% 0.063 271.8)
-
Step 400
400
#8A9DDF
oklch(70.7% 0.099 271.4)
-
Step 500
500
#6E83D6
oklch(63% 0.127 271.6)
-
Step 600
600
#576BC3
oklch(55.5% 0.138 271.6)
-
Step 700
700 (this color)
#4D5FAF
oklch(51.1% 0.128 271.7)
-
Step 800
800
#3B4988
oklch(42.6% 0.105 271.8)
-
Step 900
900
#323E6D
oklch(37.7% 0.082 271.2)
-
Step 950
950
#1D2440
oklch(26.9% 0.053 271.8)
#4D5FAF 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) | #3B69B2 | 0.031 |
| Deuteranopia (no green cones) | #2F60AD | 0.033 |
| Tritanopia (no blue cones) | #15717E | 0.115 |
| Achromatopsia (no color) | #646464 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D5FAF
#4D5FAF
oklch(51.1% 0.128 271.7)
- #7C6300
#7C6300
oklch(51% 0.104 91.4)
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 #4D5FAF, closest first.
No curated palette has a color within ΔE 0.04 of #4D5FAF.
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 0.043
- Dusky Blue #475F94 ΔE 0.045
- Iris #6258C4 ΔE 0.048
- Denim Blue #3B5B92 ΔE 0.053
- Flat Blue #3C73A8 ΔE 0.060
- Muted Blue #3B719F ΔE 0.063
- Twilight #4E518B ΔE 0.064
Use #4D5FAF 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.