#1C4391#1C4391

#1C4391 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.4% C 0.137 H 262.2°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#1C4391
RGB	rgb(28, 67, 145)
HSL	hsl(220, 68%, 34%)
HSV	hsv(220, 81%, 57%)
CMYK	cmyk(80.7%, 53.8%, 0%, 43.1%)
CIE-LAB	lab(30.17, 16.36, -46.97)
CIE-LCH	lch(30.17, 49.74, 289.20°)
OKLab	oklab(40.36% -0.0185 -0.1354)
OKLCH	oklch(40.36% 0.137 262.2)
XYZ	xyz(7.5950, 6.3046, 27.5992)
Luminance	0.0631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4391 #916A1C

analogous

#1C7E91 #1C4391 #301C91

triadic

#1C4391 #911C43 #43911C

tetradic

#1C4391 #911C7E #916A1C #1C9130

square

#1C4391 #911C7E #916A1C #1C9130

split-complementary

#1C4391 #91301C #7E911C

monochromatic

#08142A #122B5E #1C4391 #265BC4 #4B7CDC

Accessibility & contrast

On white

9.29

#1C4391 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1C4391 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4391

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4391	#FFFFFF	#000000	##FFFFFF
##1C4391	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#094D94

Deuteranopia (green-blind)

#00428F

Tritanopia (blue-blind)

#005663

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1c4391;
/* rgb */ color: rgb(28, 67, 145);
/* oklch */ color: oklch(40.4% 0.137 262.2);

Tailwind

colors: {
  custom: {
    50: '#6c76b2',
    500: '#1c4391',
    950: '#000000',
  },
}

SCSS

$custom: #1c4391;
$custom-light: #6c76b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4391",
  "rgb": {
    "r": 28,
    "g": 67,
    "b": 145
  },
  "hsl": {
    "h": 220,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.40363,
    "c": 0.13663,
    "h": 262.2
  },
  "luminance": 0.06306
}

Semantic roles & 50–950 ramp

primary

#1C4391

secondary

#BE984A

accent

#B13DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C4391

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

Preview Lab → · Contrast checker → · Palette generator →