#4370E6#4370E6

#4370E6 is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.8% C 0.186 H 265.3°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#4370E6
RGB	rgb(67, 112, 230)
HSL	hsl(223, 77%, 58%)
HSV	hsv(223, 71%, 90%)
CMYK	cmyk(70.9%, 51.3%, 0%, 9.8%)
CIE-LAB	lab(50.09, 23.92, -64.42)
CIE-LCH	lch(50.09, 68.72, 290.37°)
OKLab	oklab(57.83% -0.0153 -0.1852)
OKLCH	oklch(57.83% 0.186 265.3)
XYZ	xyz(22.3868, 18.4925, 77.2371)
Luminance	0.1850 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4370E6 #E6B943

analogous

#43C1E6 #4370E6 #6743E6

triadic

#4370E6 #E64370 #70E643

tetradic

#4370E6 #E643C1 #E6B943 #43E667

square

#4370E6 #E643C1 #E6B943 #43E667

split-complementary

#4370E6 #E66743 #C1E643

monochromatic

#14399A #1C4DD0 #4370E6 #7999ED #AFC2F4

Accessibility & contrast

On white

4.47

#4370E6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#4370E6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4370E6

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4370E6	#FFFFFF	#000000	##000000
##4370E6	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#237FEA

Deuteranopia (green-blind)

#0070E4

Tritanopia (blue-blind)

#008CA0

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4370e6;
/* rgb */ color: rgb(67, 112, 230);
/* oklch */ color: oklch(57.8% 0.186 265.3);

Tailwind

colors: {
  custom: {
    50: '#8b98ef',
    500: '#4370e6',
    950: '#000000',
  },
}

SCSS

$custom: #4370e6;
$custom-light: #8b98ef;
$custom-dark: #000000;

JSON

{
  "hex": "#4370e6",
  "rgb": {
    "r": 67,
    "g": 112,
    "b": 230
  },
  "hsl": {
    "h": 223.436,
    "s": 76.526,
    "l": 58.235
  },
  "oklch": {
    "l": 0.57826,
    "c": 0.18587,
    "h": 265.3
  },
  "luminance": 0.18495
}

Semantic roles & 50–950 ramp

primary

#4370E6

secondary

#E3D1A2

accent

#BF35F3

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4370E6

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

Preview Lab → · Contrast checker → · Palette generator →