#4071B8#4071B8

#4071B8 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 54.9% C 0.123 H 257.7°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#4071B8
RGB	rgb(64, 113, 184)
HSL	hsl(216, 48%, 49%)
HSV	hsv(216, 65%, 72%)
CMYK	cmyk(65.2%, 38.6%, 0%, 27.8%)
CIE-LAB	lab(47.44, 6.41, -42.43)
CIE-LCH	lch(47.44, 42.91, 278.59°)
OKLab	oklab(54.86% -0.0262 -0.1206)
OKLCH	oklch(54.86% 0.123 257.7)
XYZ	xyz(16.6681, 16.3593, 47.6174)
Luminance	0.1636 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4071B8 #B88740

analogous

#40ADB8 #4071B8 #4B40B8

triadic

#4071B8 #B84071 #71B840

tetradic

#4071B8 #B840AD #B88740 #40B84B

square

#4071B8 #B840AD #B88740 #40B84B

split-complementary

#4071B8 #B84B40 #ADB840

monochromatic

#20395D #30558B #4071B8 #6A92CB #97B3DB

Accessibility & contrast

On white

4.92

#4071B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#4071B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4071B8

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4071B8	#FFFFFF	#000000	##FFFFFF
##4071B8	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5277BB

Deuteranopia (green-blind)

#406BB7

Tritanopia (blue-blind)

#00818B

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4071b8;
/* rgb */ color: rgb(64, 113, 184);
/* oklch */ color: oklch(54.9% 0.123 257.7);

Tailwind

colors: {
  custom: {
    50: '#8199ce',
    500: '#4071b8',
    950: '#000000',
  },
}

SCSS

$custom: #4071b8;
$custom-light: #8199ce;
$custom-dark: #000000;

JSON

{
  "hex": "#4071b8",
  "rgb": {
    "r": 64,
    "g": 113,
    "b": 184
  },
  "hsl": {
    "h": 215.5,
    "s": 48.387,
    "l": 48.627
  },
  "oklch": {
    "l": 0.5486,
    "c": 0.12345,
    "h": 257.7
  },
  "luminance": 0.16361
}

Semantic roles & 50–950 ramp

primary

#4071B8

secondary

#C7AF8D

accent

#A050D8

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #4071B8

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

Preview Lab → · Contrast checker → · Palette generator →