#4370CD#4370CD

#4370CD is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.1% C 0.152 H 263.0°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4370CD
RGB	rgb(67, 112, 205)
HSL	hsl(220, 58%, 53%)
HSV	hsv(220, 67%, 80%)
CMYK	cmyk(67.3%, 45.4%, 0%, 19.6%)
CIE-LAB	lab(48.50, 14.99, -52.82)
CIE-LCH	lch(48.50, 54.91, 285.85°)
OKLab	oklab(56.1% -0.0186 -0.1511)
OKLCH	oklch(56.1% 0.152 263)
XYZ	xyz(19.1245, 17.1875, 60.0554)
Luminance	0.1719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4370CD #CDA043

analogous

#43B5CD #4370CD #5B43CD

triadic

#4370CD #CD4370 #70CD43

tetradic

#4370CD #CD43B5 #CDA043 #43CD5B

square

#4370CD #CD43B5 #CDA043 #43CD5B

split-complementary

#4370CD #CD5B43 #B5CD43

monochromatic

#1F3C76 #2C54A7 #4370CD #7395DA #A4BAE7

Accessibility & contrast

On white

4.73

#4370CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#4370CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4370CD

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4370CD	#FFFFFF	#000000	##FFFFFF
##4370CD	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#427AD1

Deuteranopia (green-blind)

#286DCB

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4370cd;
/* rgb */ color: rgb(67, 112, 205);
/* oklch */ color: oklch(56.1% 0.152 263.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#4370cd",
  "rgb": {
    "r": 67,
    "g": 112,
    "b": 205
  },
  "hsl": {
    "h": 220.435,
    "s": 57.983,
    "l": 53.333
  },
  "oklch": {
    "l": 0.561,
    "c": 0.15224,
    "h": 263
  },
  "luminance": 0.17189
}

Semantic roles & 50–950 ramp

primary

#4370CD

secondary

#D4C098

accent

#AF47E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4370CD

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

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