#1C4099#1C4099

#1C4099 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.4% C 0.152 H 264.1°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#1C4099
RGB	rgb(28, 64, 153)
HSL	hsl(223, 69%, 35%)
HSV	hsv(223, 82%, 60%)
CMYK	cmyk(81.7%, 58.2%, 0%, 40%)
CIE-LAB	lab(29.94, 21.64, -52.23)
CIE-LCH	lch(29.94, 56.53, 292.51°)
OKLab	oklab(40.39% -0.0157 -0.1509)
OKLCH	oklch(40.39% 0.152 264.1)
XYZ	xyz(8.0600, 6.2126, 30.9052)
Luminance	0.0621 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4099 #99751C

analogous

#1C7E99 #1C4099 #361C99

triadic

#1C4099 #991C40 #40991C

tetradic

#1C4099 #991C7E #99751C #1C9936

square

#1C4099 #991C7E #99751C #1C9936

split-complementary

#1C4099 #99361C #7E991C

monochromatic

#091532 #132A65 #1C4099 #2556CD #5079DF

Accessibility & contrast

On white

9.36

#1C4099 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1C4099 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4099

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4099	#FFFFFF	#000000	##FFFFFF
##1C4099	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9C

Deuteranopia (green-blind)

#004197

Tritanopia (blue-blind)

#005666

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1c4099;
/* rgb */ color: rgb(28, 64, 153);
/* oklch */ color: oklch(40.4% 0.152 264.1);

Tailwind

colors: {
  custom: {
    50: '#6e74b8',
    500: '#1c4099',
    950: '#000000',
  },
}

SCSS

$custom: #1c4099;
$custom-light: #6e74b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4099",
  "rgb": {
    "r": 28,
    "g": 64,
    "b": 153
  },
  "hsl": {
    "h": 222.72,
    "s": 69.061,
    "l": 35.49
  },
  "oklch": {
    "l": 0.4039,
    "c": 0.15168,
    "h": 264.1
  },
  "luminance": 0.06214
}

Semantic roles & 50–950 ramp

primary

#1C4099

secondary

#C2A14F

accent

#B93CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C4099

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

Preview Lab → · Contrast checker → · Palette generator →