#1C3D9C#1C3D9C

#1C3D9C is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.160 H 265.1°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#1C3D9C
RGB	rgb(28, 61, 156)
HSL	hsl(225, 70%, 36%)
HSV	hsv(225, 82%, 61%)
CMYK	cmyk(82.1%, 60.9%, 0%, 38.8%)
CIE-LAB	lab(29.37, 24.88, -54.98)
CIE-LCH	lch(29.37, 60.35, 294.35°)
OKLab	oklab(40.04% -0.0136 -0.159)
OKLCH	oklch(40.04% 0.16 265.1)
XYZ	xyz(8.1463, 5.9837, 32.1717)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3D9C #9C7B1C

analogous

#1C7D9C #1C3D9C #3B1C9C

triadic

#1C3D9C #9C1C3D #3D9C1C

tetradic

#1C3D9C #9C1C7D #9C7B1C #1C9C3B

square

#1C3D9C #9C1C7D #9C7B1C #1C9C3B

split-complementary

#1C3D9C #9C3B1C #7D9C1C

monochromatic

#091434 #132968 #1C3D9C #2551D0 #5277E0

Accessibility & contrast

On white

9.56

#1C3D9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#1C3D9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3D9C

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3D9C	#FFFFFF	#000000	##FFFFFF
##1C3D9C	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9F

Deuteranopia (green-blind)

#003F9A

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1c3d9c;
/* rgb */ color: rgb(28, 61, 156);
/* oklch */ color: oklch(40.0% 0.160 265.1);

Tailwind

colors: {
  custom: {
    50: '#6f72ba',
    500: '#1c3d9c',
    950: '#000000',
  },
}

SCSS

$custom: #1c3d9c;
$custom-light: #6f72ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3d9c",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 156
  },
  "hsl": {
    "h": 224.531,
    "s": 69.565,
    "l": 36.078
  },
  "oklch": {
    "l": 0.4004,
    "c": 0.15958,
    "h": 265.1
  },
  "luminance": 0.05985
}

Semantic roles & 50–950 ramp

primary

#1C3D9C

secondary

#C3A651

accent

#BF3BEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1C3D9C

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

Preview Lab → · Contrast checker → · Palette generator →