#1C428D#1C428D

#1C428D is a dark, vivid blue. Relative luminance 0.061; OKLCH L 39.8% C 0.132 H 262.1°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#1C428D
RGB	rgb(28, 66, 141)
HSL	hsl(220, 67%, 33%)
HSV	hsv(220, 80%, 55%)
CMYK	cmyk(80.1%, 53.2%, 0%, 44.7%)
CIE-LAB	lab(29.58, 15.43, -45.47)
CIE-LCH	lch(29.58, 48.02, 288.74°)
OKLab	oklab(39.82% -0.0182 -0.131)
OKLCH	oklch(39.82% 0.132 262.1)
XYZ	xyz(7.2331, 6.0656, 25.9837)
Luminance	0.0607 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C428D #8D671C

analogous

#1C7A8D #1C428D #2E1C8D

triadic

#1C428D #8D1C42 #428D1C

tetradic

#1C428D #8D1C7A #8D671C #1C8D2E

square

#1C428D #8D1C7A #8D671C #1C8D2E

split-complementary

#1C428D #8D2E1C #7A8D1C

monochromatic

#081227 #122A5A #1C428D #265AC0 #497ADB

Accessibility & contrast

On white

9.49

#1C428D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1C428D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C428D

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C428D	#FFFFFF	#000000	##FFFFFF
##1C428D	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E4B90

Deuteranopia (green-blind)

#00418C

Tritanopia (blue-blind)

#005461

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1c428d;
/* rgb */ color: rgb(28, 66, 141);
/* oklch */ color: oklch(39.8% 0.132 262.1);

Tailwind

colors: {
  custom: {
    50: '#6b75af',
    500: '#1c428d',
    950: '#000000',
  },
}

SCSS

$custom: #1c428d;
$custom-light: #6b75af;
$custom-dark: #000000;

JSON

{
  "hex": "#1c428d",
  "rgb": {
    "r": 28,
    "g": 66,
    "b": 141
  },
  "hsl": {
    "h": 219.823,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.39818,
    "c": 0.13222,
    "h": 262.1
  },
  "luminance": 0.06066
}

Semantic roles & 50–950 ramp

primary

#1C428D

secondary

#BD9548

accent

#B03EEA

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1C428D

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

Preview Lab → · Contrast checker → · Palette generator →