#4078BC#4078BC

#4078BC is a mid, vivid cyan. Relative luminance 0.182; OKLCH L 56.7% C 0.121 H 254.5°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#4078BC
RGB	rgb(64, 120, 188)
HSL	hsl(213, 49%, 49%)
HSV	hsv(213, 66%, 74%)
CMYK	cmyk(66%, 36.2%, 0%, 26.3%)
CIE-LAB	lab(49.68, 3.52, -41.19)
CIE-LCH	lch(49.68, 41.34, 274.89°)
OKLab	oklab(56.67% -0.0324 -0.1169)
OKLCH	oklch(56.67% 0.121 254.5)
XYZ	xyz(17.9046, 18.1520, 50.1273)
Luminance	0.1815 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4078BC #BC8440

analogous

#40B6BC #4078BC #4640BC

triadic

#4078BC #BC4078 #78BC40

tetradic

#4078BC #BC40B6 #BC8440 #40BC46

square

#4078BC #BC40B6 #BC8440 #40BC46

split-complementary

#4078BC #BC4640 #B6BC40

monochromatic

#213E61 #305B8E #4078BC #6C98CD #9AB8DD

Accessibility & contrast

On white

4.53

#4078BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#4078BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4078BC

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4078BC	#FFFFFF	#000000	##000000
##4078BC	1.00	4.53	4.63	4.63
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7DBF

Deuteranopia (green-blind)

#4971BB

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4078bc;
/* rgb */ color: rgb(64, 120, 188);
/* oklch */ color: oklch(56.7% 0.121 254.5);

Tailwind

colors: {
  custom: {
    50: '#819ed0',
    500: '#4078bc',
    950: '#000000',
  },
}

SCSS

$custom: #4078bc;
$custom-light: #819ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#4078bc",
  "rgb": {
    "r": 64,
    "g": 120,
    "b": 188
  },
  "hsl": {
    "h": 212.903,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.56673,
    "c": 0.12134,
    "h": 254.5
  },
  "luminance": 0.18154
}

Semantic roles & 50–950 ramp

primary

#4078BC

secondary

#C9AF8F

accent

#9B4FD9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #4078BC

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

Preview Lab → · Contrast checker → · Palette generator →