#4178D6#4178D6

#4178D6 is a mid, vivid blue. Relative luminance 0.194; OKLCH L 58.3% C 0.156 H 260.4°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#4178D6
RGB	rgb(65, 120, 214)
HSL	hsl(218, 65%, 55%)
HSV	hsv(218, 70%, 84%)
CMYK	cmyk(69.6%, 43.9%, 0%, 16.1%)
CIE-LAB	lab(51.16, 12.92, -53.67)
CIE-LCH	lch(51.16, 55.20, 283.53°)
OKLab	oklab(58.3% -0.026 -0.1535)
OKLCH	oklch(58.3% 0.156 260.4)
XYZ	xyz(21.0297, 19.4096, 66.2434)
Luminance	0.1941 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178D6 #D69F41

analogous

#41C3D6 #4178D6 #5441D6

triadic

#4178D6 #D64178 #78D641

tetradic

#4178D6 #D641C3 #D69F41 #41D654

square

#4178D6 #D641C3 #D69F41 #41D654

split-complementary

#4178D6 #D65441 #C3D641

monochromatic

#1C4181 #275BB3 #4178D6 #739CE1 #A6C0EC

Accessibility & contrast

On white

4.30

#4178D6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#4178D6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4178D6

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178D6	#FFFFFF	#000000	##000000
##4178D6	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A81DA

Deuteranopia (green-blind)

#2E73D4

Tritanopia (blue-blind)

#008E9C

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4178d6;
/* rgb */ color: rgb(65, 120, 214);
/* oklch */ color: oklch(58.3% 0.156 260.4);

Tailwind

colors: {
  custom: {
    50: '#869ee3',
    500: '#4178d6',
    950: '#000000',
  },
}

SCSS

$custom: #4178d6;
$custom-light: #869ee3;
$custom-dark: #000000;

JSON

{
  "hex": "#4178d6",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 214
  },
  "hsl": {
    "h": 217.852,
    "s": 64.502,
    "l": 54.706
  },
  "oklch": {
    "l": 0.58304,
    "c": 0.1557,
    "h": 260.4
  },
  "luminance": 0.19412
}

Semantic roles & 50–950 ramp

primary

#4178D6

secondary

#D9C29A

accent

#AA40E7

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0D0E15

muted

#7D7E84

Preview Lab

Preview with #4178D6

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

Preview Lab → · Contrast checker → · Palette generator →