#4179CB#4179CB

#4179CB is a mid, vivid blue. Relative luminance 0.191; OKLCH L 57.8% C 0.140 H 258.0°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#4179CB
RGB	rgb(65, 121, 203)
HSL	hsl(216, 57%, 53%)
HSV	hsv(216, 68%, 80%)
CMYK	cmyk(68%, 40.4%, 0%, 20.4%)
CIE-LAB	lab(50.81, 8.38, -47.98)
CIE-LCH	lch(50.81, 48.70, 279.90°)
OKLab	oklab(57.83% -0.0291 -0.1368)
OKLCH	oklch(57.83% 0.14 258)
XYZ	xyz(19.7929, 19.1083, 59.1335)
Luminance	0.1911 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4179CB #CB9341

analogous

#41BECB #4179CB #4E41CB

triadic

#4179CB #CB4179 #79CB41

tetradic

#4179CB #CB41BE #CB9341 #41CB4E

square

#4179CB #CB41BE #CB9341 #41CB4E

split-complementary

#4179CB #CB4E41 #BECB41

monochromatic

#1F4172 #2C5CA2 #4179CB #719BD8 #A1BDE5

Accessibility & contrast

On white

4.36

#4179CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#4179CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4179CB

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4179CB	#FFFFFF	#000000	##000000
##4179CB	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5380CE

Deuteranopia (green-blind)

#3E73C9

Tritanopia (blue-blind)

#008C98

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4179cb;
/* rgb */ color: rgb(65, 121, 203);
/* oklch */ color: oklch(57.8% 0.140 258.0);

Tailwind

colors: {
  custom: {
    50: '#849fdb',
    500: '#4179cb',
    950: '#000000',
  },
}

SCSS

$custom: #4179cb;
$custom-light: #849fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4179cb",
  "rgb": {
    "r": 65,
    "g": 121,
    "b": 203
  },
  "hsl": {
    "h": 215.652,
    "s": 57.025,
    "l": 52.549
  },
  "oklch": {
    "l": 0.5783,
    "c": 0.13985,
    "h": 258
  },
  "luminance": 0.1911
}

Semantic roles & 50–950 ramp

primary

#4179CB

secondary

#D2BA96

accent

#A248E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4179CB

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

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