#4071BC#4071BC

#4071BC is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.1% C 0.129 H 258.7°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#4071BC
RGB	rgb(64, 113, 188)
HSL	hsl(216, 49%, 49%)
HSV	hsv(216, 66%, 74%)
CMYK	cmyk(66%, 39.9%, 0%, 26.3%)
CIE-LAB	lab(47.66, 7.82, -44.39)
CIE-LCH	lch(47.66, 45.08, 280.00°)
OKLab	oklab(55.1% -0.0253 -0.1264)
OKLCH	oklch(55.1% 0.129 258.7)
XYZ	xyz(17.0933, 16.5294, 49.8569)
Luminance	0.1653 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4071BC #BC8B40

analogous

#40AFBC #4071BC #4D40BC

triadic

#4071BC #BC4071 #71BC40

tetradic

#4071BC #BC40AF #BC8B40 #40BC4D

square

#4071BC #BC40AF #BC8B40 #40BC4D

split-complementary

#4071BC #BC4D40 #AFBC40

monochromatic

#213A61 #30568E #4071BC #6C92CD #9AB4DD

Accessibility & contrast

On white

4.88

#4071BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#4071BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4071BC

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4071BC	#FFFFFF	#000000	##FFFFFF
##4071BC	1.00	4.88	4.31	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F77BF

Deuteranopia (green-blind)

#3D6CBA

Tritanopia (blue-blind)

#00828D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4071bc;
/* rgb */ color: rgb(64, 113, 188);
/* oklch */ color: oklch(55.1% 0.129 258.7);

Tailwind

colors: {
  custom: {
    50: '#8199d0',
    500: '#4071bc',
    950: '#000000',
  },
}

SCSS

$custom: #4071bc;
$custom-light: #8199d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4071bc",
  "rgb": {
    "r": 64,
    "g": 113,
    "b": 188
  },
  "hsl": {
    "h": 216.29,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55102,
    "c": 0.1289,
    "h": 258.7
  },
  "luminance": 0.16531
}

Semantic roles & 50–950 ramp

primary

#4071BC

secondary

#C9B28F

accent

#A24FD9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #4071BC

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

Preview Lab → · Contrast checker → · Palette generator →