#4071C9#4071C9

#4071C9 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.9% C 0.147 H 261.1°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4071C9
RGB	rgb(64, 113, 201)
HSL	hsl(219, 56%, 52%)
HSV	hsv(219, 68%, 79%)
CMYK	cmyk(68.2%, 43.8%, 0%, 21.2%)
CIE-LAB	lab(48.41, 12.46, -50.68)
CIE-LCH	lch(48.41, 52.19, 283.81°)
OKLab	oklab(55.92% -0.0227 -0.1449)
OKLCH	oklch(55.92% 0.147 261.1)
XYZ	xyz(18.5583, 17.1154, 57.5726)
Luminance	0.1712 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4071C9 #C99840

analogous

#40B6C9 #4071C9 #5440C9

triadic

#4071C9 #C94071 #71C940

tetradic

#4071C9 #C940B6 #C99840 #40C954

square

#4071C9 #C940B6 #C99840 #40C954

split-complementary

#4071C9 #C95440 #B6C940

monochromatic

#1F3C6F #2D569F #4071C9 #7094D6 #9FB8E4

Accessibility & contrast

On white

4.75

#4071C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#4071C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4071C9

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4071C9	#FFFFFF	#000000	##FFFFFF
##4071C9	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#467ACC

Deuteranopia (green-blind)

#2E6DC7

Tritanopia (blue-blind)

#008593

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4071c9;
/* rgb */ color: rgb(64, 113, 201);
/* oklch */ color: oklch(55.9% 0.147 261.1);

Tailwind

colors: {
  custom: {
    50: '#8499da',
    500: '#4071c9',
    950: '#000000',
  },
}

SCSS

$custom: #4071c9;
$custom-light: #8499da;
$custom-dark: #000000;

JSON

{
  "hex": "#4071c9",
  "rgb": {
    "r": 64,
    "g": 113,
    "b": 201
  },
  "hsl": {
    "h": 218.54,
    "s": 55.918,
    "l": 51.961
  },
  "oklch": {
    "l": 0.55918,
    "c": 0.14662,
    "h": 261.1
  },
  "luminance": 0.17117
}

Semantic roles & 50–950 ramp

primary

#4071C9

secondary

#D0BB94

accent

#A949DF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4071C9

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

Preview Lab → · Contrast checker → · Palette generator →