#1C368B#1C368B

#1C368B is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.1% C 0.145 H 266.2°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#1C368B
RGB	rgb(28, 54, 139)
HSL	hsl(226, 66%, 33%)
HSV	hsv(226, 80%, 55%)
CMYK	cmyk(79.9%, 61.2%, 0%, 45.5%)
CIE-LAB	lab(26.01, 22.95, -50.04)
CIE-LCH	lch(26.01, 55.05, 294.64°)
OKLab	oklab(37.08% -0.0095 -0.1446)
OKLCH	oklch(37.08% 0.145 266.2)
XYZ	xyz(6.4566, 4.7486, 24.9974)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C368B #8B711C

analogous

#1C6D8B #1C368B #391C8B

triadic

#1C368B #8B1C36 #368B1C

tetradic

#1C368B #8B1C6D #8B711C #1C8B39

square

#1C368B #8B1C6D #8B711C #1C8B39

split-complementary

#1C368B #8B391C #6D8B1C

monochromatic

#070E25 #122258 #1C368B #264ABE #476ADA

Accessibility & contrast

On white

10.77

#1C368B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1C368B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C368B

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C368B	#FFFFFF	#000000	##FFFFFF
##1C368B	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438E

Deuteranopia (green-blind)

#003989

Tritanopia (blue-blind)

#004C5B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1c368b;
/* rgb */ color: rgb(28, 54, 139);
/* oklch */ color: oklch(37.1% 0.145 266.2);

Tailwind

colors: {
  custom: {
    50: '#6b6cae',
    500: '#1c368b',
    950: '#000000',
  },
}

SCSS

$custom: #1c368b;
$custom-light: #6b6cae;
$custom-dark: #000000;

JSON

{
  "hex": "#1c368b",
  "rgb": {
    "r": 28,
    "g": 54,
    "b": 139
  },
  "hsl": {
    "h": 225.946,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.37075,
    "c": 0.14491,
    "h": 266.2
  },
  "luminance": 0.04749
}

Semantic roles & 50–950 ramp

primary

#1C368B

secondary

#BCA047

accent

#C13EE9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #1C368B

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

Preview Lab → · Contrast checker → · Palette generator →