#1C427B#1C427B

#1C427B is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.4% C 0.106 H 258.5°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#1C427B
RGB	rgb(28, 66, 123)
HSL	hsl(216, 63%, 30%)
HSV	hsv(216, 77%, 48%)
CMYK	cmyk(77.2%, 46.3%, 0%, 51.8%)
CIE-LAB	lab(28.31, 8.12, -36.33)
CIE-LCH	lch(28.31, 37.23, 282.59°)
OKLab	oklab(38.44% -0.0211 -0.1041)
OKLCH	oklch(38.44% 0.106 258.5)
XYZ	xyz(6.0010, 5.5727, 19.4944)
Luminance	0.0557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C427B #7B551C

analogous

#1C727B #1C427B #261C7B

triadic

#1C427B #7B1C42 #427B1C

tetradic

#1C427B #7B1C72 #7B551C #1C7B26

square

#1C427B #7B1C72 #7B551C #1C7B26

split-complementary

#1C427B #7B261C #727B1C

monochromatic

#060D19 #112749 #1C427B #275DAD #3E7AD3

Accessibility & contrast

On white

9.93

#1C427B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#1C427B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C427B

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C427B	#FFFFFF	#000000	##FFFFFF
##1C427B	1.00	9.93	2.11	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25477D

Deuteranopia (green-blind)

#123F7A

Tritanopia (blue-blind)

#004F58

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1c427b;
/* rgb */ color: rgb(28, 66, 123);
/* oklch */ color: oklch(38.4% 0.106 258.5);

Tailwind

colors: {
  custom: {
    50: '#6775a1',
    500: '#1c427b',
    950: '#000000',
  },
}

SCSS

$custom: #1c427b;
$custom-light: #6775a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c427b",
  "rgb": {
    "r": 28,
    "g": 66,
    "b": 123
  },
  "hsl": {
    "h": 216,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.38438,
    "c": 0.10619,
    "h": 258.5
  },
  "luminance": 0.05573
}

Semantic roles & 50–950 ramp

primary

#1C427B

secondary

#AF8444

accent

#A442E6

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1C427B

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

Preview Lab → · Contrast checker → · Palette generator →