#1B4C98#1B4C98

#1B4C98 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 42.9% C 0.135 H 259.2°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#1B4C98
RGB	rgb(27, 76, 152)
HSL	hsl(216, 70%, 35%)
HSV	hsv(216, 82%, 60%)
CMYK	cmyk(82.2%, 50%, 0%, 40.4%)
CIE-LAB	lab(33.28, 12.93, -46.21)
CIE-LCH	lch(33.28, 47.98, 285.64°)
OKLab	oklab(42.89% -0.0252 -0.1329)
OKLCH	oklch(42.89% 0.135 259.2)
XYZ	xyz(8.7019, 7.6678, 30.7211)
Luminance	0.0767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4C98 #98671B

analogous

#1B8A98 #1B4C98 #291B98

triadic

#1B4C98 #981B4C #4C981B

tetradic

#1B4C98 #981B8A #98671B #1B9829

square

#1B4C98 #981B8A #98671B #1B9829

split-complementary

#1B4C98 #98291B #8A981B

monochromatic

#091830 #123264 #1B4C98 #2466CC #4E87E0

Accessibility & contrast

On white

8.29

#1B4C98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1B4C98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4C98

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4C98	#FFFFFF	#000000	##FFFFFF
##1B4C98	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F549B

Deuteranopia (green-blind)

#004996

Tritanopia (blue-blind)

#005E6A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b4c98;
/* rgb */ color: rgb(27, 76, 152);
/* oklch */ color: oklch(42.9% 0.135 259.2);

Tailwind

colors: {
  custom: {
    50: '#6d7db7',
    500: '#1b4c98',
    950: '#000000',
  },
}

SCSS

$custom: #1b4c98;
$custom-light: #6d7db7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4c98",
  "rgb": {
    "r": 27,
    "g": 76,
    "b": 152
  },
  "hsl": {
    "h": 216.48,
    "s": 69.832,
    "l": 35.098
  },
  "oklch": {
    "l": 0.42894,
    "c": 0.13531,
    "h": 259.2
  },
  "luminance": 0.07669
}

Semantic roles & 50–950 ramp

primary

#1B4C98

secondary

#C2944D

accent

#A73BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4C98

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

Preview Lab → · Contrast checker → · Palette generator →