#1C3E80#1C3E80

#1C3E80 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.9% C 0.119 H 261.9°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#1C3E80
RGB	rgb(28, 62, 128)
HSL	hsl(220, 64%, 31%)
HSV	hsv(220, 78%, 50%)
CMYK	cmyk(78.1%, 51.6%, 0%, 49.8%)
CIE-LAB	lab(27.44, 12.92, -40.87)
CIE-LCH	lch(27.44, 42.86, 287.55°)
OKLab	oklab(37.88% -0.0166 -0.1175)
OKLCH	oklch(37.88% 0.119 261.9)
XYZ	xyz(6.0964, 5.2500, 21.1099)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3E80 #805E1C

analogous

#1C7080 #1C3E80 #2C1C80

triadic

#1C3E80 #801C3E #3E801C

tetradic

#1C3E80 #801C70 #805E1C #1C802C

square

#1C3E80 #801C70 #805E1C #1C802C

split-complementary

#1C3E80 #802C1C #70801C

monochromatic

#060D1C #11264E #1C3E80 #2756B2 #4173D5

Accessibility & contrast

On white

10.24

#1C3E80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1C3E80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3E80

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3E80	#FFFFFF	#000000	##FFFFFF
##1C3E80	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164682

Deuteranopia (green-blind)

#003C7F

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1c3e80;
/* rgb */ color: rgb(28, 62, 128);
/* oklch */ color: oklch(37.9% 0.119 261.9);

Tailwind

colors: {
  custom: {
    50: '#6872a5',
    500: '#1c3e80',
    950: '#000000',
  },
}

SCSS

$custom: #1c3e80;
$custom-light: #6872a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3e80",
  "rgb": {
    "r": 28,
    "g": 62,
    "b": 128
  },
  "hsl": {
    "h": 219.6,
    "s": 64.103,
    "l": 30.588
  },
  "oklch": {
    "l": 0.37879,
    "c": 0.11866,
    "h": 261.9
  },
  "luminance": 0.05251
}

Semantic roles & 50–950 ramp

primary

#1C3E80

secondary

#B38E44

accent

#AF41E7

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1C3E80

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

Preview Lab → · Contrast checker → · Palette generator →