#4055C9#4055C9

#4055C9 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.2% C 0.181 H 270.7°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#4055C9
RGB	rgb(64, 85, 201)
HSL	hsl(231, 56%, 52%)
HSV	hsv(231, 68%, 79%)
CMYK	cmyk(68.2%, 57.7%, 0%, 21.2%)
CIE-LAB	lab(40.90, 30.25, -62.79)
CIE-LCH	lch(40.90, 69.70, 295.72°)
OKLab	oklab(50.22% 0.0021 -0.1809)
OKLCH	oklch(50.22% 0.181 270.7)
XYZ	xyz(15.9019, 11.8025, 56.6871)
Luminance	0.1180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4055C9 #C9B440

analogous

#409AC9 #4055C9 #7040C9

triadic

#4055C9 #C94055 #55C940

tetradic

#4055C9 #C9409A #C9B440 #40C970

square

#4055C9 #C9409A #C9B440 #40C970

split-complementary

#4055C9 #C97040 #9AC940

monochromatic

#1F2C6F #2D3E9F #4055C9 #707FD6 #9FAAE4

Accessibility & contrast

On white

6.25

#4055C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#4055C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4055C9

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4055C9	#FFFFFF	#000000	##FFFFFF
##4055C9	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CD

Deuteranopia (green-blind)

#005AC7

Tritanopia (blue-blind)

#007287

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4055c9;
/* rgb */ color: rgb(64, 85, 201);
/* oklch */ color: oklch(50.2% 0.181 270.7);

Tailwind

colors: {
  custom: {
    50: '#8584da',
    500: '#4055c9',
    950: '#000000',
  },
}

SCSS

$custom: #4055c9;
$custom-light: #8584da;
$custom-dark: #000000;

JSON

{
  "hex": "#4055c9",
  "rgb": {
    "r": 64,
    "g": 85,
    "b": 201
  },
  "hsl": {
    "h": 230.803,
    "s": 55.918,
    "l": 51.961
  },
  "oklch": {
    "l": 0.50221,
    "c": 0.18089,
    "h": 270.7
  },
  "luminance": 0.11804
}

Semantic roles & 50–950 ramp

primary

#4055C9

secondary

#D0C794

accent

#C849DF

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4055C9

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

Preview Lab → · Contrast checker → · Palette generator →