#4963C4
Closest named color: Iris (#6258C4). oklch(53.1% 0.154 269.3), rgb(73, 99, 196).
Aa
White text reads best on this color (5.43:1).
About this color
#4963C4 is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.154 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.040 away. White text reads best on it, at 5.43:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.86:1 |
| White text | 5.43:1 |
Values
| HEX | #4963C4 |
| RGB | rgb(73, 99, 196) |
| HSL | hsl(227, 51%, 53%) |
| OKLCH | oklch(53.1% 0.154 269.3) |
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 #4963C4 | 5.43:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #4963C4 | 3.86:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #4963C4 text on white | 5.43:1 | AA | Lc 76.8 | Fine for body text |
| #4963C4 text on black | 3.86:1 | AA large text | Lc -24.9 | 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
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CFD9F3
oklch(88.6% 0.037 268.9)
-
Step 300
300
#AEBFEE
oklch(80.8% 0.069 269.3)
-
Step 400
400
#859DE6
oklch(70.7% 0.111 269.5)
-
Step 500
500
#6783DF
oklch(63.1% 0.142 269.3)
-
Step 600
600 (this color)
#4963C4
oklch(53.1% 0.154 269.3)
-
Step 700
700
#4158B1
oklch(49.1% 0.144 269.6)
-
Step 800
800
#35498F
oklch(42.7% 0.118 269)
-
Step 900
900
#2E3D72
oklch(37.6% 0.093 269.6)
-
Step 950
950
#1B2443
oklch(26.9% 0.059 269.9)
#4963C4 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) | #2F70C8 | 0.038 |
| Deuteranopia (no green cones) | #1264C2 | 0.043 |
| Tritanopia (no blue cones) | #00798A | 0.130 |
| Achromatopsia (no color) | #6A6A6A | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4963C4
#4963C4
oklch(53.1% 0.154 269.3)
- #856800
#856800
oklch(53.1% 0.109 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 #4963C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.040
- Dark Periwinkle #665FD1 ΔE 0.045
- French Blue #436BAD ΔE 0.046
- Royal Blue #4169E1 ΔE 0.046
- Mid Blue #276AB3 ΔE 0.046
- Warm Blue #4B57DB ΔE 0.047
- Slate Blue #6A5ACD ΔE 0.051
- Light Indigo #6D5ACF ΔE 0.056
Use #4963C4 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.