#1C3F97#1C3F97

#1C3F97 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.150 H 264.2°. Best body text is #FFFFFF at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#1C3F97
RGB	rgb(28, 63, 151)
HSL	hsl(223, 69%, 35%)
HSV	hsv(223, 81%, 59%)
CMYK	cmyk(81.5%, 58.3%, 0%, 40.8%)
CIE-LAB	lab(29.50, 21.53, -51.73)
CIE-LCH	lch(29.50, 56.03, 292.60°)
OKLab	oklab(40.01% -0.0151 -0.1494)
OKLCH	oklch(40.01% 0.15 264.2)
XYZ	xyz(7.8403, 6.0353, 30.0239)
Luminance	0.0604 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3F97 #97741C

analogous

#1C7C97 #1C3F97 #371C97

triadic

#1C3F97 #971C3F #3F971C

tetradic

#1C3F97 #971C7C #97741C #1C9737

square

#1C3F97 #971C7C #97741C #1C9737

split-complementary

#1C3F97 #97371C #7C971C

monochromatic

#091430 #122963 #1C3F97 #2655CB #4F78DE

Accessibility & contrast

On white

9.51

#1C3F97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1C3F97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3F97

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3F97	#FFFFFF	#000000	##FFFFFF
##1C3F97	1.00	9.51	2.21	9.51
#FFFFFF	9.51	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9A

Deuteranopia (green-blind)

#004095

Tritanopia (blue-blind)

#005564

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1c3f97;
/* rgb */ color: rgb(28, 63, 151);
/* oklch */ color: oklch(40.0% 0.150 264.2);

Tailwind

colors: {
  custom: {
    50: '#6e73b6',
    500: '#1c3f97',
    950: '#000000',
  },
}

SCSS

$custom: #1c3f97;
$custom-light: #6e73b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3f97",
  "rgb": {
    "r": 28,
    "g": 63,
    "b": 151
  },
  "hsl": {
    "h": 222.927,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.40007,
    "c": 0.15018,
    "h": 264.2
  },
  "luminance": 0.06036
}

Semantic roles & 50–950 ramp

primary

#1C3F97

secondary

#C1A04E

accent

#BA3CEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C3F97

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

Preview Lab → · Contrast checker → · Palette generator →