#1C4089#1C4089

#1C4089 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.0% C 0.129 H 262.4°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#1C4089
RGB	rgb(28, 64, 137)
HSL	hsl(220, 66%, 32%)
HSV	hsv(220, 80%, 54%)
CMYK	cmyk(79.6%, 53.3%, 0%, 46.3%)
CIE-LAB	lab(28.69, 15.19, -44.44)
CIE-LCH	lch(28.69, 46.96, 288.88°)
OKLab	oklab(39.05% -0.0171 -0.1279)
OKLCH	oklch(39.05% 0.129 262.4)
XYZ	xyz(6.8260, 5.7190, 24.4062)
Luminance	0.0572 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4089 #89651C

analogous

#1C7789 #1C4089 #2E1C89

triadic

#1C4089 #891C40 #40891C

tetradic

#1C4089 #891C77 #89651C #1C892E

square

#1C4089 #891C77 #89651C #1C892E

split-complementary

#1C4089 #892E1C #77891C

monochromatic

#071123 #122856 #1C4089 #2658BC #4677D9

Accessibility & contrast

On white

9.79

#1C4089 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#1C4089 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4089

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4089	#FFFFFF	#000000	##FFFFFF
##1C4089	1.00	9.79	2.14	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E498C

Deuteranopia (green-blind)

#003F88

Tritanopia (blue-blind)

#00525E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1c4089;
/* rgb */ color: rgb(28, 64, 137);
/* oklch */ color: oklch(39.0% 0.129 262.4);

Tailwind

colors: {
  custom: {
    50: '#6a74ac',
    500: '#1c4089',
    950: '#000000',
  },
}

SCSS

$custom: #1c4089;
$custom-light: #6a74ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4089",
  "rgb": {
    "r": 28,
    "g": 64,
    "b": 137
  },
  "hsl": {
    "h": 220.183,
    "s": 66.061,
    "l": 32.353
  },
  "oklch": {
    "l": 0.39049,
    "c": 0.12909,
    "h": 262.4
  },
  "luminance": 0.0572
}

Semantic roles & 50–950 ramp

primary

#1C4089

secondary

#BB9446

accent

#B13FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C4089

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

Preview Lab → · Contrast checker → · Palette generator →