#1C4A90#1C4A90

#1C4A90 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 41.9% C 0.126 H 258.9°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#1C4A90
RGB	rgb(28, 74, 144)
HSL	hsl(216, 67%, 34%)
HSV	hsv(216, 81%, 56%)
CMYK	cmyk(80.6%, 48.6%, 0%, 43.5%)
CIE-LAB	lab(32.16, 11.16, -43.14)
CIE-LCH	lch(32.16, 44.56, 284.51°)
OKLab	oklab(41.87% -0.0243 -0.1239)
OKLCH	oklch(41.87% 0.126 258.9)
XYZ	xyz(7.9599, 7.1571, 27.3421)
Luminance	0.0716 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4A90 #90621C

analogous

#1C8490 #1C4A90 #281C90

triadic

#1C4A90 #901C4A #4A901C

tetradic

#1C4A90 #901C84 #90621C #1C9028

square

#1C4A90 #901C84 #90621C #1C9028

split-complementary

#1C4A90 #90281C #84901C

monochromatic

#08152A #12305D #1C4A90 #2664C3 #4A84DC

Accessibility & contrast

On white

8.64

#1C4A90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1C4A90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4A90

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4A90	#FFFFFF	#000000	##FFFFFF
##1C4A90	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#235193

Deuteranopia (green-blind)

#00478F

Tritanopia (blue-blind)

#005B66

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1c4a90;
/* rgb */ color: rgb(28, 74, 144);
/* oklch */ color: oklch(41.9% 0.126 258.9);

Tailwind

colors: {
  custom: {
    50: '#6b7bb1',
    500: '#1c4a90',
    950: '#000000',
  },
}

SCSS

$custom: #1c4a90;
$custom-light: #6b7bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4a90",
  "rgb": {
    "r": 28,
    "g": 74,
    "b": 144
  },
  "hsl": {
    "h": 216.207,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.41865,
    "c": 0.1263,
    "h": 258.9
  },
  "luminance": 0.07158
}

Semantic roles & 50–950 ramp

primary

#1C4A90

secondary

#BE904A

accent

#A63DEA

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080911

muted

#7A7B80

Preview Lab

Preview with #1C4A90

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

Preview Lab → · Contrast checker → · Palette generator →