#1C3D9A#1C3D9A

#1C3D9A is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.157 H 265.0°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#1C3D9A
RGB	rgb(28, 61, 154)
HSL	hsl(224, 69%, 36%)
HSV	hsv(224, 82%, 60%)
CMYK	cmyk(81.8%, 60.4%, 0%, 39.6%)
CIE-LAB	lab(29.20, 24.09, -54.04)
CIE-LCH	lch(29.20, 59.17, 294.03°)
OKLab	oklab(39.86% -0.0137 -0.1562)
OKLCH	oklch(39.86% 0.157 265)
XYZ	xyz(7.9783, 5.9165, 31.2871)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3D9A #9A791C

analogous

#1C7C9A #1C3D9A #3A1C9A

triadic

#1C3D9A #9A1C3D #3D9A1C

tetradic

#1C3D9A #9A1C7C #9A791C #1C9A3A

square

#1C3D9A #9A1C7C #9A791C #1C9A3A

split-complementary

#1C3D9A #9A3A1C #7C9A1C

monochromatic

#091432 #132866 #1C3D9A #2552CE #5176DF

Accessibility & contrast

On white

9.62

#1C3D9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1C3D9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3D9A

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3D9A	#FFFFFF	#000000	##FFFFFF
##1C3D9A	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9D

Deuteranopia (green-blind)

#003F98

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1c3d9a;
/* rgb */ color: rgb(28, 61, 154);
/* oklch */ color: oklch(39.9% 0.157 265.0);

Tailwind

colors: {
  custom: {
    50: '#6f72b9',
    500: '#1c3d9a',
    950: '#000000',
  },
}

SCSS

$custom: #1c3d9a;
$custom-light: #6f72b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3d9a",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 154
  },
  "hsl": {
    "h": 224.286,
    "s": 69.231,
    "l": 35.686
  },
  "oklch": {
    "l": 0.39859,
    "c": 0.15685,
    "h": 265
  },
  "luminance": 0.05917
}

Semantic roles & 50–950 ramp

primary

#1C3D9A

secondary

#C2A450

accent

#BE3CEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #1C3D9A

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

Preview Lab → · Contrast checker → · Palette generator →