#1C4FA7#1C4FA7

#1C4FA7 is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.8% C 0.152 H 260.6°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#1C4FA7
RGB	rgb(28, 79, 167)
HSL	hsl(218, 71%, 38%)
HSV	hsv(218, 83%, 65%)
CMYK	cmyk(83.2%, 52.7%, 0%, 34.5%)
CIE-LAB	lab(35.26, 17.04, -52.04)
CIE-LCH	lch(35.26, 54.75, 288.13°)
OKLab	oklab(44.76% -0.0248 -0.15)
OKLCH	oklch(44.76% 0.152 260.6)
XYZ	xyz(10.2474, 8.6276, 37.6769)
Luminance	0.0863 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4FA7 #A7741C

analogous

#1C94A7 #1C4FA7 #2F1CA7

triadic

#1C4FA7 #A71C4F #4FA71C

tetradic

#1C4FA7 #A71C94 #A7741C #1CA72F

square

#1C4FA7 #A71C94 #A7741C #1CA72F

split-complementary

#1C4FA7 #A72F1C #94A71C

monochromatic

#0A1D3E #133673 #1C4FA7 #2668DB #5A8CE3

Accessibility & contrast

On white

7.70

#1C4FA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#1C4FA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4FA7

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4FA7	#FFFFFF	#000000	##FFFFFF
##1C4FA7	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F5AAA

Deuteranopia (green-blind)

#004DA5

Tritanopia (blue-blind)

#006573

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1c4fa7;
/* rgb */ color: rgb(28, 79, 167);
/* oklch */ color: oklch(44.8% 0.152 260.6);

Tailwind

colors: {
  custom: {
    50: '#717fc2',
    500: '#1c4fa7',
    950: '#000000',
  },
}

SCSS

$custom: #1c4fa7;
$custom-light: #717fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4fa7",
  "rgb": {
    "r": 28,
    "g": 79,
    "b": 167
  },
  "hsl": {
    "h": 217.986,
    "s": 71.282,
    "l": 38.235
  },
  "oklch": {
    "l": 0.44756,
    "c": 0.15205,
    "h": 260.6
  },
  "luminance": 0.08629
}

Semantic roles & 50–950 ramp

primary

#1C4FA7

secondary

#C79E58

accent

#AC3AEE

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1C4FA7

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

Preview Lab → · Contrast checker → · Palette generator →