#1C3373#1C3373

#1C3373 is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.3% C 0.114 H 265.7°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#1C3373
RGB	rgb(28, 51, 115)
HSL	hsl(224, 61%, 28%)
HSV	hsv(224, 76%, 45%)
CMYK	cmyk(75.7%, 55.7%, 0%, 54.9%)
CIE-LAB	lab(23.18, 15.39, -39.53)
CIE-LCH	lch(23.18, 42.42, 291.27°)
OKLab	oklab(34.33% -0.0085 -0.1138)
OKLCH	oklch(34.33% 0.114 265.7)
XYZ	xyz(4.7561, 3.8518, 16.7092)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3373 #735C1C

analogous

#1C5E73 #1C3373 #301C73

triadic

#1C3373 #731C33 #33731C

tetradic

#1C3373 #731C5E #735C1C #1C7330

square

#1C3373 #731C5E #735C1C #1C7330

split-complementary

#1C3373 #73301C #5E731C

monochromatic

#060B19 #101D42 #1C3373 #2849A4 #3A62CF

Accessibility & contrast

On white

11.86

#1C3373 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1C3373 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3373

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3373	#FFFFFF	#000000	##FFFFFF
##1C3373	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#053B75

Deuteranopia (green-blind)

#003372

Tritanopia (blue-blind)

#00424D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1c3373;
/* rgb */ color: rgb(28, 51, 115);
/* oklch */ color: oklch(34.3% 0.114 265.7);

Tailwind

colors: {
  custom: {
    50: '#656a9c',
    500: '#1c3373',
    950: '#000000',
  },
}

SCSS

$custom: #1c3373;
$custom-light: #656a9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3373",
  "rgb": {
    "r": 28,
    "g": 51,
    "b": 115
  },
  "hsl": {
    "h": 224.138,
    "s": 60.839,
    "l": 28.039
  },
  "oklch": {
    "l": 0.34328,
    "c": 0.11409,
    "h": 265.7
  },
  "luminance": 0.03852
}

Semantic roles & 50–950 ramp

primary

#1C3373

secondary

#A78D43

accent

#BA44E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1C3373

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

Preview Lab → · Contrast checker → · Palette generator →