#4078B2#4078B2

#4078B2 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 56.1% C 0.108 H 251.1°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#4078B2
RGB	rgb(64, 120, 178)
HSL	hsl(211, 47%, 47%)
HSV	hsv(211, 64%, 70%)
CMYK	cmyk(64%, 32.6%, 0%, 30.2%)
CIE-LAB	lab(49.17, 0.04, -36.21)
CIE-LCH	lch(49.17, 36.21, 270.06°)
OKLab	oklab(56.11% -0.0351 -0.1024)
OKLCH	oklch(56.11% 0.108 251.1)
XYZ	xyz(16.8638, 17.7356, 44.6454)
Luminance	0.1774 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4078B2 #B27A40

analogous

#40B1B2 #4078B2 #4140B2

triadic

#4078B2 #B24078 #78B240

tetradic

#4078B2 #B240B1 #B27A40 #40B241

square

#4078B2 #B240B1 #B27A40 #40B241

split-complementary

#4078B2 #B24140 #B1B240

monochromatic

#203B58 #305A85 #4078B2 #6797C8 #94B6D8

Accessibility & contrast

On white

4.62

#4078B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#4078B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4078B2

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4078B2	#FFFFFF	#000000	##FFFFFF
##4078B2	1.00	4.62	4.55	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7BB4

Deuteranopia (green-blind)

#4F70B1

Tritanopia (blue-blind)

#00868D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4078b2;
/* rgb */ color: rgb(64, 120, 178);
/* oklch */ color: oklch(56.1% 0.108 251.1);

Tailwind

colors: {
  custom: {
    50: '#809ec9',
    500: '#4078b2',
    950: '#000000',
  },
}

SCSS

$custom: #4078b2;
$custom-light: #809ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#4078b2",
  "rgb": {
    "r": 64,
    "g": 120,
    "b": 178
  },
  "hsl": {
    "h": 210.526,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.56112,
    "c": 0.10827,
    "h": 251.1
  },
  "luminance": 0.17737
}

Semantic roles & 50–950 ramp

primary

#4078B2

secondary

#C4A78A

accent

#9551D7

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4078B2

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

Preview Lab → · Contrast checker → · Palette generator →