#1C4DA7#1C4DA7

#1C4DA7 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.3% C 0.155 H 261.3°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#1C4DA7
RGB	rgb(28, 77, 167)
HSL	hsl(219, 71%, 38%)
HSV	hsv(219, 83%, 65%)
CMYK	cmyk(83.2%, 53.9%, 0%, 34.5%)
CIE-LAB	lab(34.69, 18.39, -52.96)
CIE-LCH	lch(34.69, 56.06, 289.14°)
OKLab	oklab(44.32% -0.0234 -0.1528)
OKLCH	oklch(44.32% 0.155 261.3)
XYZ	xyz(10.1053, 8.3434, 37.6296)
Luminance	0.0834 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4DA7 #A7761C

analogous

#1C92A7 #1C4DA7 #301CA7

triadic

#1C4DA7 #A71C4D #4DA71C

tetradic

#1C4DA7 #A71C92 #A7761C #1CA730

square

#1C4DA7 #A71C92 #A7761C #1CA730

split-complementary

#1C4DA7 #A7301C #92A71C

monochromatic

#0A1D3E #133573 #1C4DA7 #2665DB #5A8AE3

Accessibility & contrast

On white

7.87

#1C4DA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#1C4DA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4DA7

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4DA7	#FFFFFF	#000000	##FFFFFF
##1C4DA7	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0258AA

Deuteranopia (green-blind)

#004CA5

Tritanopia (blue-blind)

#006372

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1c4da7;
/* rgb */ color: rgb(28, 77, 167);
/* oklch */ color: oklch(44.3% 0.155 261.3);

Tailwind

colors: {
  custom: {
    50: '#717ec2',
    500: '#1c4da7',
    950: '#000000',
  },
}

SCSS

$custom: #1c4da7;
$custom-light: #717ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4da7",
  "rgb": {
    "r": 28,
    "g": 77,
    "b": 167
  },
  "hsl": {
    "h": 218.849,
    "s": 71.282,
    "l": 38.235
  },
  "oklch": {
    "l": 0.44323,
    "c": 0.15455,
    "h": 261.3
  },
  "luminance": 0.08345
}

Semantic roles & 50–950 ramp

primary

#1C4DA7

secondary

#C7A058

accent

#AE3AEE

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1C4DA7

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

Preview Lab → · Contrast checker → · Palette generator →