#4075C9#4075C9

#4075C9 is a mid, vivid blue. Relative luminance 0.180; OKLCH L 56.8% C 0.142 H 259.3°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#4075C9
RGB	rgb(64, 117, 201)
HSL	hsl(217, 56%, 52%)
HSV	hsv(217, 68%, 79%)
CMYK	cmyk(68.2%, 41.8%, 0%, 21.2%)
CIE-LAB	lab(49.53, 9.97, -48.89)
CIE-LCH	lch(49.53, 49.89, 281.53°)
OKLab	oklab(56.79% -0.0265 -0.1395)
OKLCH	oklch(56.79% 0.142 259.3)
XYZ	xyz(19.0145, 18.0277, 57.7246)
Luminance	0.1803 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4075C9 #C99440

analogous

#40BAC9 #4075C9 #5040C9

triadic

#4075C9 #C94075 #75C940

tetradic

#4075C9 #C940BA #C99440 #40C950

square

#4075C9 #C940BA #C99440 #40C950

split-complementary

#4075C9 #C95040 #BAC940

monochromatic

#1F3E6F #2D599F #4075C9 #7097D6 #9FBAE4

Accessibility & contrast

On white

4.56

#4075C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#4075C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4075C9

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4075C9	#FFFFFF	#000000	##000000
##4075C9	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7DCC

Deuteranopia (green-blind)

#3770C7

Tritanopia (blue-blind)

#008895

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4075c9;
/* rgb */ color: rgb(64, 117, 201);
/* oklch */ color: oklch(56.8% 0.142 259.3);

Tailwind

colors: {
  custom: {
    50: '#849cda',
    500: '#4075c9',
    950: '#000000',
  },
}

SCSS

$custom: #4075c9;
$custom-light: #849cda;
$custom-dark: #000000;

JSON

{
  "hex": "#4075c9",
  "rgb": {
    "r": 64,
    "g": 117,
    "b": 201
  },
  "hsl": {
    "h": 216.788,
    "s": 55.918,
    "l": 51.961
  },
  "oklch": {
    "l": 0.56787,
    "c": 0.14201,
    "h": 259.3
  },
  "luminance": 0.1803
}

Semantic roles & 50–950 ramp

primary

#4075C9

secondary

#D0B994

accent

#A549DF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4075C9

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

Preview Lab → · Contrast checker → · Palette generator →