#4D63AA
Closest named color: French Blue (#436BAD). oklch(51.6% 0.115 269.1), rgb(77, 99, 170).
Aa
White text reads best on this color (5.70:1).
About this color
#4D63AA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.115 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.023 away. White text reads best on it, at 5.70:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.68:1 |
| White text | 5.70:1 |
Values
| HEX | #4D63AA |
| RGB | rgb(77, 99, 170) |
| HSL | hsl(226, 38%, 48%) |
| OKLCH | oklch(51.6% 0.115 269.1) |
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 #4D63AA | 5.70:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #4D63AA | 3.68:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #4D63AA text on white | 5.70:1 | AA | Lc 78.4 | Fine for body text |
| #4D63AA text on black | 3.68:1 | AA large text | Lc -23.4 | 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
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D1D9EE
oklch(88.6% 0.03 269.1)
-
Step 300
300
#B2C0E6
oklch(81% 0.056 269.2)
-
Step 400
400
#8A9ED9
oklch(70.6% 0.09 269.6)
-
Step 500
500
#6D85CF
oklch(63% 0.115 269.3)
-
Step 600
600
#566EBC
oklch(55.6% 0.124 269.2)
-
Step 700
700 (this color)
#4D63AA
oklch(51.6% 0.115 269.1)
-
Step 800
800
#3A4B83
oklch(42.7% 0.095 269.3)
-
Step 900
900
#313F69
oklch(37.7% 0.074 268.7)
-
Step 950
950
#1D253E
oklch(27% 0.048 269.5)
#4D63AA 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) | #456BAD | 0.022 |
| Deuteranopia (no green cones) | #3A63A8 | 0.022 |
| Tritanopia (no blue cones) | #1C727E | 0.103 |
| Achromatopsia (no color) | #666666 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D63AA
#4D63AA
oklch(51.6% 0.115 269.1)
- #806400
#806400
oklch(51.7% 0.106 89.4)
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 #4D63AA, closest first.
No curated palette has a color within ΔE 0.04 of #4D63AA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.023
- Dusky Blue #475F94 ΔE 0.037
- Mid Blue #276AB3 ΔE 0.038
- Flat Blue #3C73A8 ΔE 0.047
- Muted Blue #3B719F ΔE 0.049
- Denim Blue #3B5B92 ΔE 0.049
- Denim #3B638C ΔE 0.055
- Iris #6258C4 ΔE 0.059
Use #4D63AA 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.