#1C4997#1C4997

#1C4997 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.2% C 0.137 H 260.6°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#1C4997
RGB	rgb(28, 73, 151)
HSL	hsl(218, 69%, 35%)
HSV	hsv(218, 81%, 59%)
CMYK	cmyk(81.5%, 51.7%, 0%, 40.8%)
CIE-LAB	lab(32.36, 14.67, -47.09)
CIE-LCH	lch(32.36, 49.32, 287.31°)
OKLab	oklab(42.17% -0.0224 -0.1356)
OKLCH	oklch(42.17% 0.137 260.6)
XYZ	xyz(8.4453, 7.2453, 30.2255)
Luminance	0.0725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4997 #976A1C

analogous

#1C8697 #1C4997 #2D1C97

triadic

#1C4997 #971C49 #49971C

tetradic

#1C4997 #971C86 #976A1C #1C972D

square

#1C4997 #971C86 #976A1C #1C972D

split-complementary

#1C4997 #972D1C #86971C

monochromatic

#091730 #123063 #1C4997 #2662CB #4F83DE

Accessibility & contrast

On white

8.57

#1C4997 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1C4997 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4997

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4997	#FFFFFF	#000000	##FFFFFF
##1C4997	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17529A

Deuteranopia (green-blind)

#004795

Tritanopia (blue-blind)

#005C69

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1c4997;
/* rgb */ color: rgb(28, 73, 151);
/* oklch */ color: oklch(42.2% 0.137 260.6);

Tailwind

colors: {
  custom: {
    50: '#6d7bb6',
    500: '#1c4997',
    950: '#000000',
  },
}

SCSS

$custom: #1c4997;
$custom-light: #6d7bb6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4997",
  "rgb": {
    "r": 28,
    "g": 73,
    "b": 151
  },
  "hsl": {
    "h": 218.049,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.42174,
    "c": 0.13742,
    "h": 260.6
  },
  "luminance": 0.07246
}

Semantic roles & 50–950 ramp

primary

#1C4997

secondary

#C1974E

accent

#AB3CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1C4997

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

Preview Lab → · Contrast checker → · Palette generator →