#4078B3#4078B3

#4078B3 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 56.2% C 0.110 H 251.4°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#4078B3
RGB	rgb(64, 120, 179)
HSL	hsl(211, 47%, 48%)
HSV	hsv(211, 64%, 70%)
CMYK	cmyk(64.2%, 33%, 0%, 29.8%)
CIE-LAB	lab(49.22, 0.38, -36.72)
CIE-LCH	lch(49.22, 36.72, 270.60°)
OKLab	oklab(56.17% -0.0349 -0.1039)
OKLCH	oklch(56.17% 0.11 251.4)
XYZ	xyz(16.9645, 17.7760, 45.1762)
Luminance	0.1778 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4078B3 #B37B40

analogous

#40B1B3 #4078B3 #4240B3

triadic

#4078B3 #B34078 #78B340

tetradic

#4078B3 #B340B1 #B37B40 #40B342

square

#4078B3 #B340B1 #B37B40 #40B342

split-complementary

#4078B3 #B34240 #B1B340

monochromatic

#203C59 #305A86 #4078B3 #6797C9 #94B6D9

Accessibility & contrast

On white

4.61

#4078B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#4078B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4078B3

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4078B3	#FFFFFF	#000000	##FFFFFF
##4078B3	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7BB6

Deuteranopia (green-blind)

#4F70B2

Tritanopia (blue-blind)

#00868D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4078b3;
/* rgb */ color: rgb(64, 120, 179);
/* oklch */ color: oklch(56.2% 0.110 251.4);

Tailwind

colors: {
  custom: {
    50: '#809eca',
    500: '#4078b3',
    950: '#000000',
  },
}

SCSS

$custom: #4078b3;
$custom-light: #809eca;
$custom-dark: #000000;

JSON

{
  "hex": "#4078b3",
  "rgb": {
    "r": 64,
    "g": 120,
    "b": 179
  },
  "hsl": {
    "h": 210.783,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56166,
    "c": 0.10956,
    "h": 251.4
  },
  "luminance": 0.17778
}

Semantic roles & 50–950 ramp

primary

#4078B3

secondary

#C4A88A

accent

#9651D7

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4078B3

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

Preview Lab → · Contrast checker → · Palette generator →