#1C4FA6#1C4FA6

#1C4FA6 is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.7% C 0.151 H 260.5°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#1C4FA6
RGB	rgb(28, 79, 166)
HSL	hsl(218, 71%, 38%)
HSV	hsv(218, 83%, 65%)
CMYK	cmyk(83.1%, 52.4%, 0%, 34.9%)
CIE-LAB	lab(35.18, 16.64, -51.56)
CIE-LCH	lch(35.18, 54.18, 287.88°)
OKLab	oklab(44.68% -0.0249 -0.1486)
OKLCH	oklch(44.68% 0.151 260.5)
XYZ	xyz(10.1553, 8.5908, 37.1919)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4FA6 #A6731C

analogous

#1C94A6 #1C4FA6 #2E1CA6

triadic

#1C4FA6 #A61C4F #4FA61C

tetradic

#1C4FA6 #A61C94 #A6731C #1CA62E

square

#1C4FA6 #A61C94 #A6731C #1CA62E

split-complementary

#1C4FA6 #A62E1C #94A61C

monochromatic

#0A1D3D #133672 #1C4FA6 #2568DA #598CE3

Accessibility & contrast

On white

7.73

#1C4FA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#1C4FA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4FA6

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4FA6	#FFFFFF	#000000	##FFFFFF
##1C4FA6	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1259A9

Deuteranopia (green-blind)

#004DA4

Tritanopia (blue-blind)

#006473

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1c4fa6;
/* rgb */ color: rgb(28, 79, 166);
/* oklch */ color: oklch(44.7% 0.151 260.5);

Tailwind

colors: {
  custom: {
    50: '#717fc1',
    500: '#1c4fa6',
    950: '#000000',
  },
}

SCSS

$custom: #1c4fa6;
$custom-light: #717fc1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4fa6",
  "rgb": {
    "r": 28,
    "g": 79,
    "b": 166
  },
  "hsl": {
    "h": 217.826,
    "s": 71.134,
    "l": 38.039
  },
  "oklch": {
    "l": 0.44677,
    "c": 0.15068,
    "h": 260.5
  },
  "luminance": 0.08592
}

Semantic roles & 50–950 ramp

primary

#1C4FA6

secondary

#C79D57

accent

#AB3AEE

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1C4FA6

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

Preview Lab → · Contrast checker → · Palette generator →