#4178CD#4178CD

#4178CD is a mid, vivid blue. Relative luminance 0.190; OKLCH L 57.7% C 0.144 H 258.9°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#4178CD
RGB	rgb(65, 120, 205)
HSL	hsl(216, 58%, 53%)
HSV	hsv(216, 68%, 80%)
CMYK	cmyk(68.3%, 41.5%, 0%, 19.6%)
CIE-LAB	lab(50.64, 9.70, -49.39)
CIE-LCH	lch(50.64, 50.33, 281.11°)
OKLab	oklab(57.73% -0.0277 -0.1409)
OKLCH	oklch(57.73% 0.144 258.9)
XYZ	xyz(19.9119, 18.9625, 60.3565)
Luminance	0.1897 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178CD #CD9641

analogous

#41BECD #4178CD #5041CD

triadic

#4178CD #CD4178 #78CD41

tetradic

#4178CD #CD41BE #CD9641 #41CD50

square

#4178CD #CD41BE #CD9641 #41CD50

split-complementary

#4178CD #CD5041 #BECD41

monochromatic

#1F4175 #2C5BA5 #4178CD #719ADA #A2BDE6

Accessibility & contrast

On white

4.38

#4178CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#4178CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4178CD

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178CD	#FFFFFF	#000000	##000000
##4178CD	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5080D0

Deuteranopia (green-blind)

#3A73CB

Tritanopia (blue-blind)

#008C98

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4178cd;
/* rgb */ color: rgb(65, 120, 205);
/* oklch */ color: oklch(57.7% 0.144 258.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#4178cd",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 205
  },
  "hsl": {
    "h": 216.429,
    "s": 58.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.57734,
    "c": 0.14364,
    "h": 258.9
  },
  "luminance": 0.18965
}

Semantic roles & 50–950 ramp

primary

#4178CD

secondary

#D3BB97

accent

#A546E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4178CD

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

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