#1C4791#1C4791

#1C4791 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.3% C 0.132 H 260.5°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#1C4791
RGB	rgb(28, 71, 145)
HSL	hsl(218, 68%, 34%)
HSV	hsv(218, 81%, 57%)
CMYK	cmyk(80.7%, 51%, 0%, 43.1%)
CIE-LAB	lab(31.34, 13.61, -45.08)
CIE-LCH	lch(31.34, 47.09, 286.80°)
OKLab	oklab(41.26% -0.0217 -0.1297)
OKLCH	oklch(41.26% 0.132 260.5)
XYZ	xyz(7.8411, 6.7968, 27.6812)
Luminance	0.0680 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4791 #91661C

analogous

#1C8291 #1C4791 #2C1C91

triadic

#1C4791 #911C47 #47911C

tetradic

#1C4791 #911C82 #91661C #1C912C

square

#1C4791 #911C82 #91661C #1C912C

split-complementary

#1C4791 #912C1C #82911C

monochromatic

#08152A #122E5E #1C4791 #2660C4 #4B80DC

Accessibility & contrast

On white

8.90

#1C4791 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#1C4791 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4791

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4791	#FFFFFF	#000000	##FFFFFF
##1C4791	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4F94

Deuteranopia (green-blind)

#004590

Tritanopia (blue-blind)

#005965

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1c4791;
/* rgb */ color: rgb(28, 71, 145);
/* oklch */ color: oklch(41.3% 0.132 260.5);

Tailwind

colors: {
  custom: {
    50: '#6c79b2',
    500: '#1c4791',
    950: '#000000',
  },
}

SCSS

$custom: #1c4791;
$custom-light: #6c79b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4791",
  "rgb": {
    "r": 28,
    "g": 71,
    "b": 145
  },
  "hsl": {
    "h": 217.949,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.41257,
    "c": 0.1315,
    "h": 260.5
  },
  "luminance": 0.06798
}

Semantic roles & 50–950 ramp

primary

#1C4791

secondary

#BE944A

accent

#AB3DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1C4791

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

Preview Lab → · Contrast checker → · Palette generator →