#4077CB#4077CB

#4077CB is a mid, vivid blue. Relative luminance 0.186; OKLCH L 57.3% C 0.142 H 258.7°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#4077CB
RGB	rgb(64, 119, 203)
HSL	hsl(216, 57%, 52%)
HSV	hsv(216, 68%, 80%)
CMYK	cmyk(68.5%, 41.4%, 0%, 20.4%)
CIE-LAB	lab(50.21, 9.45, -48.95)
CIE-LCH	lch(50.21, 49.85, 280.93°)
OKLab	oklab(57.35% -0.028 -0.1397)
OKLCH	oklch(57.35% 0.142 258.7)
XYZ	xyz(19.4868, 18.5934, 59.0502)
Luminance	0.1860 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4077CB #CB9440

analogous

#40BDCB #4077CB #4E40CB

triadic

#4077CB #CB4077 #77CB40

tetradic

#4077CB #CB40BD #CB9440 #40CB4E

square

#4077CB #CB40BD #CB9440 #40CB4E

split-complementary

#4077CB #CB4E40 #BDCB40

monochromatic

#1F4072 #2C5BA2 #4077CB #7099D8 #A0BCE5

Accessibility & contrast

On white

4.45

#4077CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#4077CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4077CB

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4077CB	#FFFFFF	#000000	##000000
##4077CB	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#507ECE

Deuteranopia (green-blind)

#3972C9

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4077cb;
/* rgb */ color: rgb(64, 119, 203);
/* oklch */ color: oklch(57.3% 0.142 258.7);

Tailwind

colors: {
  custom: {
    50: '#849ddb',
    500: '#4077cb',
    950: '#000000',
  },
}

SCSS

$custom: #4077cb;
$custom-light: #849ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#4077cb",
  "rgb": {
    "r": 64,
    "g": 119,
    "b": 203
  },
  "hsl": {
    "h": 216.259,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.57349,
    "c": 0.14244,
    "h": 258.7
  },
  "luminance": 0.18595
}

Semantic roles & 50–950 ramp

primary

#4077CB

secondary

#D2BA95

accent

#A447E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4077CB

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

Preview Lab → · Contrast checker → · Palette generator →