#4178D2#4178D2

#4178D2 is a mid, vivid blue. Relative luminance 0.192; OKLCH L 58.0% C 0.150 H 259.8°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#4178D2
RGB	rgb(65, 120, 210)
HSL	hsl(217, 62%, 54%)
HSV	hsv(217, 69%, 82%)
CMYK	cmyk(69%, 42.9%, 0%, 17.6%)
CIE-LAB	lab(50.93, 11.49, -51.78)
CIE-LCH	lch(50.93, 53.04, 282.51°)
OKLab	oklab(58.05% -0.0267 -0.1479)
OKLCH	oklch(58.05% 0.15 259.8)
XYZ	xyz(20.5251, 19.2078, 63.5860)
Luminance	0.1921 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178D2 #D29B41

analogous

#41C1D2 #4178D2 #5341D2

triadic

#4178D2 #D24178 #78D241

tetradic

#4178D2 #D241C1 #D29B41 #41D253

square

#4178D2 #D241C1 #D29B41 #41D253

split-complementary

#4178D2 #D25341 #C1D241

monochromatic

#1D417B #295BAD #4178D2 #729BDE #A4BEE9

Accessibility & contrast

On white

4.34

#4178D2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#4178D2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4178D2

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178D2	#FFFFFF	#000000	##000000
##4178D2	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D80D5

Deuteranopia (green-blind)

#3473D0

Tritanopia (blue-blind)

#008D9B

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4178d2;
/* rgb */ color: rgb(65, 120, 210);
/* oklch */ color: oklch(58.0% 0.150 259.8);

Tailwind

colors: {
  custom: {
    50: '#869ee0',
    500: '#4178d2',
    950: '#000000',
  },
}

SCSS

$custom: #4178d2;
$custom-light: #869ee0;
$custom-dark: #000000;

JSON

{
  "hex": "#4178d2",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 210
  },
  "hsl": {
    "h": 217.241,
    "s": 61.702,
    "l": 53.922
  },
  "oklch": {
    "l": 0.58048,
    "c": 0.15035,
    "h": 259.8
  },
  "luminance": 0.1921
}

Semantic roles & 50–950 ramp

primary

#4178D2

secondary

#D6BF98

accent

#A743E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4178D2

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

Preview Lab → · Contrast checker → · Palette generator →