#4370CE#4370CE

#4370CE is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.2% C 0.154 H 263.1°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#4370CE
RGB	rgb(67, 112, 206)
HSL	hsl(221, 59%, 54%)
HSV	hsv(221, 67%, 81%)
CMYK	cmyk(67.5%, 45.6%, 0%, 19.2%)
CIE-LAB	lab(48.56, 15.35, -53.29)
CIE-LCH	lch(48.56, 55.46, 286.07°)
OKLab	oklab(56.17% -0.0184 -0.1525)
OKLCH	oklch(56.17% 0.154 263.1)
XYZ	xyz(19.2456, 17.2360, 60.6932)
Luminance	0.1724 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4370CE #CEA143

analogous

#43B5CE #4370CE #5B43CE

triadic

#4370CE #CE4370 #70CE43

tetradic

#4370CE #CE43B5 #CEA143 #43CE5B

square

#4370CE #CE43B5 #CEA143 #43CE5B

split-complementary

#4370CE #CE5B43 #B5CE43

monochromatic

#1F3C77 #2C54A8 #4370CE #7495DB #A4BAE7

Accessibility & contrast

On white

4.72

#4370CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#4370CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4370CE

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4370CE	#FFFFFF	#000000	##FFFFFF
##4370CE	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#417AD2

Deuteranopia (green-blind)

#266DCC

Tritanopia (blue-blind)

#008695

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4370ce;
/* rgb */ color: rgb(67, 112, 206);
/* oklch */ color: oklch(56.2% 0.154 263.1);

Tailwind

colors: {
  custom: {
    50: '#8698dd',
    500: '#4370ce',
    950: '#000000',
  },
}

SCSS

$custom: #4370ce;
$custom-light: #8698dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4370ce",
  "rgb": {
    "r": 67,
    "g": 112,
    "b": 206
  },
  "hsl": {
    "h": 220.576,
    "s": 58.65,
    "l": 53.529
  },
  "oklch": {
    "l": 0.56166,
    "c": 0.15361,
    "h": 263.1
  },
  "luminance": 0.17238
}

Semantic roles & 50–950 ramp

primary

#4370CE

secondary

#D4C199

accent

#AF46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4370CE

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

Preview Lab → · Contrast checker → · Palette generator →