#1C4291#1C4291

#1C4291 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.1% C 0.138 H 262.6°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#1C4291
RGB	rgb(28, 66, 145)
HSL	hsl(221, 68%, 34%)
HSV	hsv(221, 81%, 57%)
CMYK	cmyk(80.7%, 54.5%, 0%, 43.1%)
CIE-LAB	lab(29.88, 17.05, -47.44)
CIE-LCH	lch(29.88, 50.41, 289.77°)
OKLab	oklab(40.14% -0.0178 -0.1368)
OKLCH	oklch(40.14% 0.138 262.6)
XYZ	xyz(7.5361, 6.1868, 27.5796)
Luminance	0.0619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4291 #916B1C

analogous

#1C7D91 #1C4291 #311C91

triadic

#1C4291 #911C42 #42911C

tetradic

#1C4291 #911C7D #916B1C #1C9131

square

#1C4291 #911C7D #916B1C #1C9131

split-complementary

#1C4291 #91311C #7D911C

monochromatic

#08132A #122B5E #1C4291 #2659C4 #4B7ADC

Accessibility & contrast

On white

9.39

#1C4291 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1C4291 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4291

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4291	#FFFFFF	#000000	##FFFFFF
##1C4291	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#044C94

Deuteranopia (green-blind)

#00418F

Tritanopia (blue-blind)

#005563

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1c4291;
/* rgb */ color: rgb(28, 66, 145);
/* oklch */ color: oklch(40.1% 0.138 262.6);

Tailwind

colors: {
  custom: {
    50: '#6c75b2',
    500: '#1c4291',
    950: '#000000',
  },
}

SCSS

$custom: #1c4291;
$custom-light: #6c75b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4291",
  "rgb": {
    "r": 28,
    "g": 66,
    "b": 145
  },
  "hsl": {
    "h": 220.513,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.40143,
    "c": 0.13791,
    "h": 262.6
  },
  "luminance": 0.06188
}

Semantic roles & 50–950 ramp

primary

#1C4291

secondary

#BE994A

accent

#B23DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C4291

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

Preview Lab → · Contrast checker → · Palette generator →