#1C3D8E#1C3D8E

#1C3D8E is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.8% C 0.140 H 264.1°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#1C3D8E
RGB	rgb(28, 61, 142)
HSL	hsl(223, 67%, 33%)
HSV	hsv(223, 80%, 56%)
CMYK	cmyk(80.3%, 57%, 0%, 44.3%)
CIE-LAB	lab(28.21, 19.30, -48.30)
CIE-LCH	lch(28.21, 52.02, 291.78°)
OKLab	oklab(38.81% -0.0143 -0.1394)
OKLCH	oklch(38.81% 0.14 264.1)
XYZ	xyz(7.0284, 5.5365, 26.2842)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3D8E #8E6D1C

analogous

#1C768E #1C3D8E #341C8E

triadic

#1C3D8E #8E1C3D #3D8E1C

tetradic

#1C3D8E #8E1C76 #8E6D1C #1C8E34

square

#1C3D8E #8E1C76 #8E6D1C #1C8E34

split-complementary

#1C3D8E #8E341C #768E1C

monochromatic

#081128 #12275B #1C3D8E #2653C1 #4973DB

Accessibility & contrast

On white

9.96

#1C3D8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#1C3D8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3D8E

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3D8E	#FFFFFF	#000000	##FFFFFF
##1C3D8E	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004891

Deuteranopia (green-blind)

#003E8C

Tritanopia (blue-blind)

#00515F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1c3d8e;
/* rgb */ color: rgb(28, 61, 142);
/* oklch */ color: oklch(38.8% 0.140 264.1);

Tailwind

colors: {
  custom: {
    50: '#6c72b0',
    500: '#1c3d8e',
    950: '#000000',
  },
}

SCSS

$custom: #1c3d8e;
$custom-light: #6c72b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3d8e",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 142
  },
  "hsl": {
    "h": 222.632,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38807,
    "c": 0.14012,
    "h": 264.1
  },
  "luminance": 0.05537
}

Semantic roles & 50–950 ramp

primary

#1C3D8E

secondary

#BD9B49

accent

#B83EEA

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #1C3D8E

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

Preview Lab → · Contrast checker → · Palette generator →