#1C3593#1C3593

#1C3593 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.6% C 0.157 H 266.8°. Best body text is #FFFFFF at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#1C3593
RGB	rgb(28, 53, 147)
HSL	hsl(227, 68%, 34%)
HSV	hsv(227, 81%, 58%)
CMYK	cmyk(81%, 63.9%, 0%, 42.4%)
CIE-LAB	lab(26.44, 26.80, -54.27)
CIE-LCH	lch(26.44, 60.52, 296.28°)
OKLab	oklab(37.62% -0.0088 -0.157)
OKLCH	oklch(37.62% 0.157 266.8)
XYZ	xyz(7.0166, 4.8989, 28.1739)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3593 #937A1C

analogous

#1C7193 #1C3593 #3F1C93

triadic

#1C3593 #931C35 #35931C

tetradic

#1C3593 #931C71 #937A1C #1C933F

square

#1C3593 #931C71 #937A1C #1C933F

split-complementary

#1C3593 #933F1C #71931C

monochromatic

#08102C #122260 #1C3593 #2648C6 #4C6BDD

Accessibility & contrast

On white

10.61

#1C3593 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#1C3593 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3593

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3593	#FFFFFF	#000000	##FFFFFF
##1C3593	1.00	10.61	1.98	10.61
#FFFFFF	10.61	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004496

Deuteranopia (green-blind)

#003991

Tritanopia (blue-blind)

#004E5F

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1c3593;
/* rgb */ color: rgb(28, 53, 147);
/* oklch */ color: oklch(37.6% 0.157 266.8);

Tailwind

colors: {
  custom: {
    50: '#6e6cb4',
    500: '#1c3593',
    950: '#000000',
  },
}

SCSS

$custom: #1c3593;
$custom-light: #6e6cb4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3593",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 147
  },
  "hsl": {
    "h": 227.395,
    "s": 68,
    "l": 34.314
  },
  "oklch": {
    "l": 0.37619,
    "c": 0.15725,
    "h": 266.8
  },
  "luminance": 0.049
}

Semantic roles & 50–950 ramp

primary

#1C3593

secondary

#BFA74C

accent

#C63DEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1C3593

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

Preview Lab → · Contrast checker → · Palette generator →