#1C428E#1C428E

#1C428E is a dark, vivid blue. Relative luminance 0.061; OKLCH L 39.9% C 0.134 H 262.2°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#1C428E
RGB	rgb(28, 66, 142)
HSL	hsl(220, 67%, 33%)
HSV	hsv(220, 80%, 56%)
CMYK	cmyk(80.3%, 53.5%, 0%, 44.3%)
CIE-LAB	lab(29.65, 15.84, -45.97)
CIE-LCH	lch(29.65, 48.62, 289.01°)
OKLab	oklab(39.9% -0.0181 -0.1324)
OKLCH	oklch(39.9% 0.134 262.2)
XYZ	xyz(7.3078, 6.0954, 26.3773)
Luminance	0.0610 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C428E #8E681C

analogous

#1C7B8E #1C428E #2F1C8E

triadic

#1C428E #8E1C42 #428E1C

tetradic

#1C428E #8E1C7B #8E681C #1C8E2F

square

#1C428E #8E1C7B #8E681C #1C8E2F

split-complementary

#1C428E #8E2F1C #7B8E1C

monochromatic

#081228 #122A5B #1C428E #265AC1 #497ADB

Accessibility & contrast

On white

9.46

#1C428E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#1C428E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C428E

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C428E	#FFFFFF	#000000	##FFFFFF
##1C428E	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4B91

Deuteranopia (green-blind)

#00418C

Tritanopia (blue-blind)

#005461

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1c428e;
/* rgb */ color: rgb(28, 66, 142);
/* oklch */ color: oklch(39.9% 0.134 262.2);

Tailwind

colors: {
  custom: {
    50: '#6b75b0',
    500: '#1c428e',
    950: '#000000',
  },
}

SCSS

$custom: #1c428e;
$custom-light: #6b75b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c428e",
  "rgb": {
    "r": 28,
    "g": 66,
    "b": 142
  },
  "hsl": {
    "h": 220,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.39899,
    "c": 0.13365,
    "h": 262.2
  },
  "luminance": 0.06096
}

Semantic roles & 50–950 ramp

primary

#1C428E

secondary

#BD9649

accent

#B13EEA

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1C428E

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

Preview Lab → · Contrast checker → · Palette generator →