#1C3596#1C3596

#1C3596 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.9% C 0.161 H 266.8°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#1C3596
RGB	rgb(28, 53, 150)
HSL	hsl(228, 69%, 35%)
HSV	hsv(228, 81%, 59%)
CMYK	cmyk(81.3%, 64.7%, 0%, 41.2%)
CIE-LAB	lab(26.72, 27.97, -55.66)
CIE-LCH	lch(26.72, 62.29, 296.68°)
OKLab	oklab(37.91% -0.0089 -0.1611)
OKLCH	oklch(37.91% 0.161 266.8)
XYZ	xyz(7.2551, 4.9942, 29.4299)
Luminance	0.0500 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3596 #967D1C

analogous

#1C7296 #1C3596 #401C96

triadic

#1C3596 #961C35 #35961C

tetradic

#1C3596 #961C72 #967D1C #1C9640

square

#1C3596 #961C72 #967D1C #1C9640

split-complementary

#1C3596 #96401C #72961C

monochromatic

#09112F #122362 #1C3596 #2647CA #4E6CDE

Accessibility & contrast

On white

10.51

#1C3596 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1C3596 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3596

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3596	#FFFFFF	#000000	##FFFFFF
##1C3596	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004599

Deuteranopia (green-blind)

#003A94

Tritanopia (blue-blind)

#004F60

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1c3596;
/* rgb */ color: rgb(28, 53, 150);
/* oklch */ color: oklch(37.9% 0.161 266.8);

Tailwind

colors: {
  custom: {
    50: '#6e6cb6',
    500: '#1c3596',
    950: '#000000',
  },
}

SCSS

$custom: #1c3596;
$custom-light: #6e6cb6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3596",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 150
  },
  "hsl": {
    "h": 227.705,
    "s": 68.539,
    "l": 34.902
  },
  "oklch": {
    "l": 0.37906,
    "c": 0.16134,
    "h": 266.8
  },
  "luminance": 0.04995
}

Semantic roles & 50–950 ramp

primary

#1C3596

secondary

#C1A94D

accent

#C83CEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #1C3596

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

Preview Lab → · Contrast checker → · Palette generator →