#1C2791#1C2791

#1C2791 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.9% C 0.171 H 269.5°. Best body text is #FFFFFF at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#1C2791
RGB	rgb(28, 39, 145)
HSL	hsl(234, 68%, 34%)
HSV	hsv(234, 81%, 57%)
CMYK	cmyk(80.7%, 73.1%, 0%, 43.1%)
CIE-LAB	lab(22.80, 35.26, -59.02)
CIE-LCH	lch(22.80, 68.76, 300.86°)
OKLab	oklab(34.9% -0.0014 -0.171)
OKLCH	oklch(34.9% 0.171 269.5)
XYZ	xyz(6.3135, 3.7415, 27.1720)
Luminance	0.0374 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2791 #91861C

analogous

#1C6291 #1C2791 #4C1C91

triadic

#1C2791 #911C27 #27911C

tetradic

#1C2791 #911C62 #91861C #1C914C

square

#1C2791 #911C62 #91861C #1C914C

split-complementary

#1C2791 #914C1C #62911C

monochromatic

#080B2A #12195E #1C2791 #2635C4 #4B59DC

Accessibility & contrast

On white

12.01

#1C2791 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1C2791 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2791

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2791	#FFFFFF	#000000	##FFFFFF
##1C2791	1.00	12.01	1.75	12.01
#FFFFFF	12.01	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C94

Deuteranopia (green-blind)

#00318F

Tritanopia (blue-blind)

#004559

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1c2791;
/* rgb */ color: rgb(28, 39, 145);
/* oklch */ color: oklch(34.9% 0.171 269.5);

Tailwind

colors: {
  custom: {
    50: '#6e62b2',
    500: '#1c2791',
    950: '#000000',
  },
}

SCSS

$custom: #1c2791;
$custom-light: #6e62b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2791",
  "rgb": {
    "r": 28,
    "g": 39,
    "b": 145
  },
  "hsl": {
    "h": 234.359,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.34899,
    "c": 0.17098,
    "h": 269.5
  },
  "luminance": 0.03742
}

Semantic roles & 50–950 ramp

primary

#1C2791

secondary

#BEB44A

accent

#DA3DEB

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1C2791

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

Preview Lab → · Contrast checker → · Palette generator →