#1C3972#1C3972

#1C3972 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.6% C 0.104 H 262.2°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#1C3972
RGB	rgb(28, 57, 114)
HSL	hsl(220, 61%, 28%)
HSV	hsv(220, 75%, 45%)
CMYK	cmyk(75.4%, 50%, 0%, 55.3%)
CIE-LAB	lab(24.91, 10.72, -36.09)
CIE-LCH	lch(24.91, 37.65, 286.55°)
OKLab	oklab(35.63% -0.0142 -0.1035)
OKLCH	oklch(35.63% 0.105 262.2)
XYZ	xyz(4.9782, 4.3875, 16.5008)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3972 #72551C

analogous

#1C6472 #1C3972 #2A1C72

triadic

#1C3972 #721C39 #39721C

tetradic

#1C3972 #721C64 #72551C #1C722A

square

#1C3972 #721C64 #72551C #1C722A

split-complementary

#1C3972 #722A1C #64721C

monochromatic

#060C19 #102041 #1C3972 #2852A3 #3A6CCF

Accessibility & contrast

On white

11.18

#1C3972 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1C3972 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3972

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3972	#FFFFFF	#000000	##FFFFFF
##1C3972	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A3F74

Deuteranopia (green-blind)

#043771

Tritanopia (blue-blind)

#004650

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1c3972;
/* rgb */ color: rgb(28, 57, 114);
/* oklch */ color: oklch(35.6% 0.104 262.2);

Tailwind

colors: {
  custom: {
    50: '#656e9b',
    500: '#1c3972',
    950: '#000000',
  },
}

SCSS

$custom: #1c3972;
$custom-light: #656e9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3972",
  "rgb": {
    "r": 28,
    "g": 57,
    "b": 114
  },
  "hsl": {
    "h": 219.767,
    "s": 60.563,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35628,
    "c": 0.1045,
    "h": 262.2
  },
  "luminance": 0.04388
}

Semantic roles & 50–950 ramp

primary

#1C3972

secondary

#A68543

accent

#AE44E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1C3972

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

Preview Lab → · Contrast checker → · Palette generator →