#4371D1#4371D1

#4371D1 is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.6% C 0.157 H 263.1°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#4371D1
RGB	rgb(67, 113, 209)
HSL	hsl(221, 61%, 54%)
HSV	hsv(221, 68%, 82%)
CMYK	cmyk(67.9%, 45.9%, 0%, 18%)
CIE-LAB	lab(49.01, 15.79, -54.27)
CIE-LCH	lch(49.01, 56.52, 286.22°)
OKLab	oklab(56.58% -0.0189 -0.1554)
OKLCH	oklch(56.58% 0.157 263.1)
XYZ	xyz(19.7244, 17.6050, 62.6679)
Luminance	0.1761 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4371D1 #D1A343

analogous

#43B8D1 #4371D1 #5C43D1

triadic

#4371D1 #D14371 #71D143

tetradic

#4371D1 #D143B8 #D1A343 #43D15C

square

#4371D1 #D143B8 #D1A343 #43D15C

split-complementary

#4371D1 #D15C43 #B8D143

monochromatic

#1E3C7B #2A54AD #4371D1 #7496DD #A5BBE9

Accessibility & contrast

On white

4.64

#4371D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#4371D1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4371D1

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4371D1	#FFFFFF	#000000	##FFFFFF
##4371D1	1.00	4.64	4.52	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#407BD5

Deuteranopia (green-blind)

#246ECF

Tritanopia (blue-blind)

#008797

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4371d1;
/* rgb */ color: rgb(67, 113, 209);
/* oklch */ color: oklch(56.6% 0.157 263.1);

Tailwind

colors: {
  custom: {
    50: '#8699e0',
    500: '#4371d1',
    950: '#000000',
  },
}

SCSS

$custom: #4371d1;
$custom-light: #8699e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4371d1",
  "rgb": {
    "r": 67,
    "g": 113,
    "b": 209
  },
  "hsl": {
    "h": 220.563,
    "s": 60.684,
    "l": 54.118
  },
  "oklch": {
    "l": 0.56576,
    "c": 0.1565,
    "h": 263.1
  },
  "luminance": 0.17607
}

Semantic roles & 50–950 ramp

primary

#4371D1

secondary

#D6C39A

accent

#B044E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4371D1

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

Preview Lab → · Contrast checker → · Palette generator →