#1C2391#1C2391

#1C2391 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.3% C 0.175 H 270.1°. Best body text is #FFFFFF at 12.36:1 contrast (WCAG AA passes).

Color values

HEX	#1C2391
RGB	rgb(28, 35, 145)
HSL	hsl(236, 68%, 34%)
HSV	hsv(236, 81%, 57%)
CMYK	cmyk(80.7%, 75.9%, 0%, 43.1%)
CIE-LAB	lab(21.92, 37.72, -60.48)
CIE-LCH	lch(21.92, 71.27, 301.95°)
OKLab	oklab(34.27% 0.0002 -0.1752)
OKLCH	oklch(34.27% 0.175 270.1)
XYZ	xyz(6.1890, 3.4926, 27.1305)
Luminance	0.0349 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2391 #918A1C

analogous

#1C5E91 #1C2391 #501C91

triadic

#1C2391 #911C23 #23911C

tetradic

#1C2391 #911C5E #918A1C #1C9150

square

#1C2391 #911C5E #918A1C #1C9150

split-complementary

#1C2391 #91501C #5E911C

monochromatic

#080A2A #12175E #1C2391 #262FC4 #4B54DC

Accessibility & contrast

On white

12.36

#1C2391 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1C2391 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2391

12.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2391	#FFFFFF	#000000	##FFFFFF
##1C2391	1.00	12.36	1.70	12.36
#FFFFFF	12.36	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A94

Deuteranopia (green-blind)

#002F8F

Tritanopia (blue-blind)

#004358

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c2391;
/* rgb */ color: rgb(28, 35, 145);
/* oklch */ color: oklch(34.3% 0.175 270.1);

Tailwind

colors: {
  custom: {
    50: '#6f5fb2',
    500: '#1c2391',
    950: '#000000',
  },
}

SCSS

$custom: #1c2391;
$custom-light: #6f5fb2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2391",
  "rgb": {
    "r": 28,
    "g": 35,
    "b": 145
  },
  "hsl": {
    "h": 236.41,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.3427,
    "c": 0.17517,
    "h": 270.1
  },
  "luminance": 0.03493
}

Semantic roles & 50–950 ramp

primary

#1C2391

secondary

#BEB74A

accent

#E03DEB

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1C2391

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

Preview Lab → · Contrast checker → · Palette generator →