#1C478A#1C478A

#1C478A is a dark, vivid blue. Relative luminance 0.066; OKLCH L 40.7% C 0.122 H 259.2°. Best body text is #FFFFFF at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#1C478A
RGB	rgb(28, 71, 138)
HSL	hsl(217, 66%, 33%)
HSV	hsv(217, 80%, 54%)
CMYK	cmyk(79.7%, 48.6%, 0%, 45.9%)
CIE-LAB	lab(30.85, 10.77, -41.57)
CIE-LCH	lch(30.85, 42.95, 284.53°)
OKLab	oklab(40.72% -0.0228 -0.1194)
OKLCH	oklch(40.72% 0.122 259.2)
XYZ	xyz(7.3179, 6.5875, 24.9257)
Luminance	0.0659 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C478A #8A5F1C

analogous

#1C7E8A #1C478A #281C8A

triadic

#1C478A #8A1C47 #478A1C

tetradic

#1C478A #8A1C7E #8A5F1C #1C8A28

square

#1C478A #8A1C7E #8A5F1C #1C8A28

split-complementary

#1C478A #8A281C #7E8A1C

monochromatic

#071324 #122D57 #1C478A #2661BD #4780DA

Accessibility & contrast

On white

9.06

#1C478A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#1C478A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C478A

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C478A	#FFFFFF	#000000	##FFFFFF
##1C478A	1.00	9.06	2.32	9.06
#FFFFFF	9.06	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224E8C

Deuteranopia (green-blind)

#024489

Tritanopia (blue-blind)

#005762

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1c478a;
/* rgb */ color: rgb(28, 71, 138);
/* oklch */ color: oklch(40.7% 0.122 259.2);

Tailwind

colors: {
  custom: {
    50: '#6a79ad',
    500: '#1c478a',
    950: '#000000',
  },
}

SCSS

$custom: #1c478a;
$custom-light: #6a79ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c478a",
  "rgb": {
    "r": 28,
    "g": 71,
    "b": 138
  },
  "hsl": {
    "h": 216.545,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.40723,
    "c": 0.12155,
    "h": 259.2
  },
  "luminance": 0.06588
}

Semantic roles & 50–950 ramp

primary

#1C478A

secondary

#BB8E46

accent

#A73FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1C478A

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

Preview Lab → · Contrast checker → · Palette generator →