#3A63C9#3A63C9

#3A63C9 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.7% C 0.165 H 264.8°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#3A63C9
RGB	rgb(58, 99, 201)
HSL	hsl(223, 57%, 51%)
HSV	hsv(223, 71%, 79%)
CMYK	cmyk(71.1%, 50.7%, 0%, 21.2%)
CIE-LAB	lab(44.29, 20.44, -57.31)
CIE-LCH	lch(44.29, 60.85, 289.63°)
OKLab	oklab(52.69% -0.015 -0.1647)
OKLCH	oklch(52.69% 0.165 264.8)
XYZ	xyz(16.7457, 14.0385, 57.0742)
Luminance	0.1404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A63C9 #C9A03A

analogous

#3AAAC9 #3A63C9 #583AC9

triadic

#3A63C9 #C93A63 #63C93A

tetradic

#3A63C9 #C93AAA #C9A03A #3AC958

square

#3A63C9 #C93AAA #C9A03A #3AC958

split-complementary

#3A63C9 #C9583A #AAC93A

monochromatic

#1D346B #2B4B9B #3A63C9 #6A89D6 #9AAFE3

Accessibility & contrast

On white

5.51

#3A63C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#3A63C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A63C9

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A63C9	#FFFFFF	#000000	##FFFFFF
##3A63C9	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2570CD

Deuteranopia (green-blind)

#0063C7

Tritanopia (blue-blind)

#007B8C

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3a63c9;
/* rgb */ color: rgb(58, 99, 201);
/* oklch */ color: oklch(52.7% 0.165 264.8);

Tailwind

colors: {
  custom: {
    50: '#828eda',
    500: '#3a63c9',
    950: '#000000',
  },
}

SCSS

$custom: #3a63c9;
$custom-light: #828eda;
$custom-dark: #000000;

JSON

{
  "hex": "#3a63c9",
  "rgb": {
    "r": 58,
    "g": 99,
    "b": 201
  },
  "hsl": {
    "h": 222.797,
    "s": 56.972,
    "l": 50.784
  },
  "oklch": {
    "l": 0.52694,
    "c": 0.16538,
    "h": 264.8
  },
  "luminance": 0.1404
}

Semantic roles & 50–950 ramp

primary

#3A63C9

secondary

#CFBD90

accent

#B448E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3A63C9

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →