#4178CE#4178CE

#4178CE is a mid, vivid blue. Relative luminance 0.190; OKLCH L 57.8% C 0.145 H 259.1°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#4178CE
RGB	rgb(65, 120, 206)
HSL	hsl(217, 59%, 53%)
HSV	hsv(217, 68%, 81%)
CMYK	cmyk(68.4%, 41.7%, 0%, 19.2%)
CIE-LAB	lab(50.70, 10.06, -49.87)
CIE-LCH	lch(50.70, 50.87, 281.40°)
OKLab	oklab(57.8% -0.0275 -0.1423)
OKLCH	oklch(57.8% 0.145 259.1)
XYZ	xyz(20.0330, 19.0109, 60.9943)
Luminance	0.1901 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178CE #CE9741

analogous

#41BECE #4178CE #5041CE

triadic

#4178CE #CE4178 #78CE41

tetradic

#4178CE #CE41BE #CE9741 #41CE50

square

#4178CE #CE41BE #CE9741 #41CE50

split-complementary

#4178CE #CE5041 #BECE41

monochromatic

#1E4176 #2B5BA7 #4178CE #729BDB #A2BDE7

Accessibility & contrast

On white

4.37

#4178CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#4178CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4178CE

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178CE	#FFFFFF	#000000	##000000
##4178CE	1.00	4.37	4.80	4.80
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5080D1

Deuteranopia (green-blind)

#3973CC

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4178ce;
/* rgb */ color: rgb(65, 120, 206);
/* oklch */ color: oklch(57.8% 0.145 259.1);

Tailwind

colors: {
  custom: {
    50: '#859edd',
    500: '#4178ce',
    950: '#000000',
  },
}

SCSS

$custom: #4178ce;
$custom-light: #859edd;
$custom-dark: #000000;

JSON

{
  "hex": "#4178ce",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 206
  },
  "hsl": {
    "h": 216.596,
    "s": 58.996,
    "l": 53.137
  },
  "oklch": {
    "l": 0.57796,
    "c": 0.14499,
    "h": 259.1
  },
  "luminance": 0.19013
}

Semantic roles & 50–950 ramp

primary

#4178CE

secondary

#D4BC97

accent

#A546E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4178CE

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

Preview Lab → · Contrast checker → · Palette generator →