#1C355A#1C355A

#1C355A is a dark, moderate blue. Relative luminance 0.035; OKLCH L 32.9% C 0.073 H 258.1°. Best body text is #FFFFFF at 12.31:1 contrast (WCAG AA passes).

Color values

HEX	#1C355A
RGB	rgb(28, 53, 90)
HSL	hsl(216, 53%, 23%)
HSV	hsv(216, 69%, 35%)
CMYK	cmyk(68.9%, 41.1%, 0%, 64.7%)
CIE-LAB	lab(22.06, 3.83, -25.11)
CIE-LCH	lch(22.06, 25.40, 278.68°)
OKLab	oklab(32.91% -0.015 -0.0713)
OKLCH	oklch(32.91% 0.073 258.1)
XYZ	xyz(3.5968, 3.5309, 10.1629)
Luminance	0.0353 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C355A #5A411C

analogous

#1C545A #1C355A #221C5A

triadic

#1C355A #5A1C35 #355A1C

tetradic

#1C355A #5A1C54 #5A411C #1C5A22

square

#1C355A #5A1C54 #5A411C #1C5A22

split-complementary

#1C355A #5A221C #545A1C

monochromatic

#070E17 #0D1A2B #1C355A #2B5089 #396CB7

Accessibility & contrast

On white

12.31

#1C355A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1C355A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C355A

12.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C355A	#FFFFFF	#000000	##FFFFFF
##1C355A	1.00	12.31	1.71	12.31
#FFFFFF	12.31	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25385B

Deuteranopia (green-blind)

#1C3259

Tritanopia (blue-blind)

#003D43

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1c355a;
/* rgb */ color: rgb(28, 53, 90);
/* oklch */ color: oklch(32.9% 0.073 258.1);

Tailwind

colors: {
  custom: {
    50: '#5f6b89',
    500: '#1c355a',
    950: '#000000',
  },
}

SCSS

$custom: #1c355a;
$custom-light: #5f6b89;
$custom-dark: #000000;

JSON

{
  "hex": "#1c355a",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 90
  },
  "hsl": {
    "h": 215.806,
    "s": 52.542,
    "l": 23.137
  },
  "oklch": {
    "l": 0.32909,
    "c": 0.07292,
    "h": 258.1
  },
  "luminance": 0.03531
}

Semantic roles & 50–950 ramp

primary

#1C355A

secondary

#8F7042

accent

#A24CDC

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060B

muted

#797A7C

Preview Lab

Preview with #1C355A

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

Preview Lab → · Contrast checker → · Palette generator →