#4D63C5
Closest named color: Iris (#6258C4). oklch(53.4% 0.154 270.8), rgb(77, 99, 197).
Aa
White text reads best on this color (5.37:1).
About this color
#4D63C5 is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.154 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.037 away. White text reads best on it, at 5.37:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.90:1 |
| White text | 5.37:1 |
Values
| HEX | #4D63C5 |
| RGB | rgb(77, 99, 197) |
| HSL | hsl(229, 51%, 54%) |
| OKLCH | oklch(53.4% 0.154 270.8) |
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 #4D63C5 | 5.37:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #4D63C5 | 3.90:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #4D63C5 text on white | 5.37:1 | AA | Lc 76.5 | Fine for body text |
| #4D63C5 text on black | 3.90:1 | AA large text | Lc -25.2 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#CFD8F3
oklch(88.4% 0.038 271)
-
Step 300
300
#B0BFEE
oklch(80.9% 0.069 271)
-
Step 400
400
#879CE6
oklch(70.6% 0.111 271.2)
-
Step 500
500
#6A82DF
oklch(63.1% 0.142 270.9)
-
Step 600
600 (this color)
#4D63C5
oklch(53.4% 0.154 270.8)
-
Step 700
700
#4458B1
oklch(49.2% 0.143 270.8)
-
Step 800
800
#38488F
oklch(42.7% 0.118 271.1)
-
Step 900
900
#303D72
oklch(37.7% 0.092 271.1)
-
Step 950
950
#1C2443
oklch(27% 0.059 271.1)
#4D63C5 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) | #2F70C9 | 0.040 |
| Deuteranopia (no green cones) | #1565C3 | 0.046 |
| Tritanopia (no blue cones) | #00798B | 0.131 |
| Achromatopsia (no color) | #6A6A6A | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D63C5
#4D63C5
oklch(53.4% 0.154 270.8)
- #856900
#856900
oklch(53.3% 0.109 90.3)
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 #4D63C5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.037
- Dark Periwinkle #665FD1 ΔE 0.040
- Royal Blue #4169E1 ΔE 0.045
- Slate Blue #6A5ACD ΔE 0.046
- Warm Blue #4B57DB ΔE 0.046
- French Blue #436BAD ΔE 0.048
- Mid Blue #276AB3 ΔE 0.050
- Light Indigo #6D5ACF ΔE 0.051
Use #4D63C5 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.