#1C3DA7#1C3DA7

#1C3DA7 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.1% C 0.174 H 265.5°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#1C3DA7
RGB	rgb(28, 61, 167)
HSL	hsl(226, 71%, 38%)
HSV	hsv(226, 83%, 65%)
CMYK	cmyk(83.2%, 63.5%, 0%, 34.5%)
CIE-LAB	lab(30.34, 29.19, -60.05)
CIE-LCH	lch(30.34, 66.77, 295.92°)
OKLab	oklab(41.05% -0.0135 -0.1739)
OKLCH	oklch(41.05% 0.174 265.5)
XYZ	xyz(9.1202, 6.3733, 37.3012)
Luminance	0.0637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3DA7 #A7861C

analogous

#1C82A7 #1C3DA7 #401CA7

triadic

#1C3DA7 #A71C3D #3DA71C

tetradic

#1C3DA7 #A71C82 #A7861C #1CA740

square

#1C3DA7 #A71C82 #A7861C #1CA740

split-complementary

#1C3DA7 #A7401C #82A71C

monochromatic

#0A173E #132A73 #1C3DA7 #2651DB #5A7BE3

Accessibility & contrast

On white

9.23

#1C3DA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1C3DA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3DA7

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3DA7	#FFFFFF	#000000	##FFFFFF
##1C3DA7	1.00	9.23	2.27	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAA

Deuteranopia (green-blind)

#0041A5

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1c3da7;
/* rgb */ color: rgb(28, 61, 167);
/* oklch */ color: oklch(41.1% 0.174 265.5);

Tailwind

colors: {
  custom: {
    50: '#7272c2',
    500: '#1c3da7',
    950: '#000000',
  },
}

SCSS

$custom: #1c3da7;
$custom-light: #7272c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3da7",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 167
  },
  "hsl": {
    "h": 225.755,
    "s": 71.282,
    "l": 38.235
  },
  "oklch": {
    "l": 0.41054,
    "c": 0.17439,
    "h": 265.5
  },
  "luminance": 0.06374
}

Semantic roles & 50–950 ramp

primary

#1C3DA7

secondary

#C7AD58

accent

#C33AEE

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1C3DA7

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

Preview Lab → · Contrast checker → · Palette generator →