#1C358A#1C358A

#1C358A is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.8% C 0.145 H 266.5°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#1C358A
RGB	rgb(28, 53, 138)
HSL	hsl(226, 66%, 33%)
HSV	hsv(226, 80%, 54%)
CMYK	cmyk(79.7%, 61.6%, 0%, 45.9%)
CIE-LAB	lab(25.65, 23.25, -50.01)
CIE-LCH	lch(25.65, 55.15, 294.93°)
OKLab	oklab(36.78% -0.0089 -0.1445)
OKLCH	oklch(36.78% 0.145 266.5)
XYZ	xyz(6.3378, 4.6273, 24.5990)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C358A #8A711C

analogous

#1C6C8A #1C358A #3A1C8A

triadic

#1C358A #8A1C35 #358A1C

tetradic

#1C358A #8A1C6C #8A711C #1C8A3A

square

#1C358A #8A1C6C #8A711C #1C8A3A

split-complementary

#1C358A #8A3A1C #6C8A1C

monochromatic

#070E24 #122157 #1C358A #2649BD #4768DA

Accessibility & contrast

On white

10.91

#1C358A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1C358A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C358A

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C358A	#FFFFFF	#000000	##FFFFFF
##1C358A	1.00	10.91	1.93	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428D

Deuteranopia (green-blind)

#003888

Tritanopia (blue-blind)

#004B5A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1c358a;
/* rgb */ color: rgb(28, 53, 138);
/* oklch */ color: oklch(36.8% 0.145 266.5);

Tailwind

colors: {
  custom: {
    50: '#6b6bad',
    500: '#1c358a',
    950: '#000000',
  },
}

SCSS

$custom: #1c358a;
$custom-light: #6b6bad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c358a",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 138
  },
  "hsl": {
    "h": 226.364,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.36779,
    "c": 0.14479,
    "h": 266.5
  },
  "luminance": 0.04628
}

Semantic roles & 50–950 ramp

primary

#1C358A

secondary

#BBA146

accent

#C23FE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1C358A

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

Preview Lab → · Contrast checker → · Palette generator →