#1C3089#1C3089

#1C3089 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.7% C 0.150 H 267.9°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#1C3089
RGB	rgb(28, 48, 137)
HSL	hsl(229, 66%, 32%)
HSV	hsv(229, 80%, 54%)
CMYK	cmyk(79.6%, 65%, 0%, 46.3%)
CIE-LAB	lab(24.21, 26.30, -51.73)
CIE-LCH	lch(24.21, 58.03, 296.95°)
OKLab	oklab(35.69% -0.0056 -0.1496)
OKLCH	oklch(35.69% 0.15 267.9)
XYZ	xyz(6.0496, 4.1662, 24.1474)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3089 #89751C

analogous

#1C6689 #1C3089 #3F1C89

triadic

#1C3089 #891C30 #30891C

tetradic

#1C3089 #891C66 #89751C #1C893F

square

#1C3089 #891C66 #89751C #1C893F

split-complementary

#1C3089 #893F1C #66891C

monochromatic

#070C23 #121E56 #1C3089 #2642BC #4661D9

Accessibility & contrast

On white

11.45

#1C3089 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1C3089 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3089

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3089	#FFFFFF	#000000	##FFFFFF
##1C3089	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8C

Deuteranopia (green-blind)

#003587

Tritanopia (blue-blind)

#004758

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1c3089;
/* rgb */ color: rgb(28, 48, 137);
/* oklch */ color: oklch(35.7% 0.150 267.9);

Tailwind

colors: {
  custom: {
    50: '#6b68ac',
    500: '#1c3089',
    950: '#000000',
  },
}

SCSS

$custom: #1c3089;
$custom-light: #6b68ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3089",
  "rgb": {
    "r": 28,
    "g": 48,
    "b": 137
  },
  "hsl": {
    "h": 228.991,
    "s": 66.061,
    "l": 32.353
  },
  "oklch": {
    "l": 0.35689,
    "c": 0.14972,
    "h": 267.9
  },
  "luminance": 0.04167
}

Semantic roles & 50–950 ramp

primary

#1C3089

secondary

#BBA546

accent

#CA3FE9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1C3089

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

Preview Lab → · Contrast checker → · Palette generator →