#1C3E72#1C3E72

#1C3E72 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.8% C 0.098 H 258.8°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#1C3E72
RGB	rgb(28, 62, 114)
HSL	hsl(216, 61%, 28%)
HSV	hsv(216, 75%, 45%)
CMYK	cmyk(75.4%, 45.6%, 0%, 55.3%)
CIE-LAB	lab(26.47, 7.22, -33.60)
CIE-LCH	lch(26.47, 34.37, 282.13°)
OKLab	oklab(36.82% -0.0191 -0.0961)
OKLCH	oklch(36.82% 0.098 258.8)
XYZ	xyz(5.2377, 4.9065, 16.5873)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3E72 #72501C

analogous

#1C6972 #1C3E72 #251C72

triadic

#1C3E72 #721C3E #3E721C

tetradic

#1C3E72 #721C69 #72501C #1C7225

square

#1C3E72 #721C69 #72501C #1C7225

split-complementary

#1C3E72 #72251C #69721C

monochromatic

#060D19 #102341 #1C3E72 #2859A3 #3A75CF

Accessibility & contrast

On white

10.60

#1C3E72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#1C3E72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3E72

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3E72	#FFFFFF	#000000	##FFFFFF
##1C3E72	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#244374

Deuteranopia (green-blind)

#153B71

Tritanopia (blue-blind)

#004A52

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1c3e72;
/* rgb */ color: rgb(28, 62, 114);
/* oklch */ color: oklch(36.8% 0.098 258.8);

Tailwind

colors: {
  custom: {
    50: '#65729b',
    500: '#1c3e72',
    950: '#000000',
  },
}

SCSS

$custom: #1c3e72;
$custom-light: #65729b;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3e72",
  "rgb": {
    "r": 28,
    "g": 62,
    "b": 114
  },
  "hsl": {
    "h": 216.279,
    "s": 60.563,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36824,
    "c": 0.09799,
    "h": 258.8
  },
  "luminance": 0.04907
}

Semantic roles & 50–950 ramp

primary

#1C3E72

secondary

#A67F43

accent

#A544E4

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1C3E72

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

Preview Lab → · Contrast checker → · Palette generator →