#1B4998#1B4998

#1B4998 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.2% C 0.139 H 260.5°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#1B4998
RGB	rgb(27, 73, 152)
HSL	hsl(218, 70%, 35%)
HSV	hsv(218, 82%, 60%)
CMYK	cmyk(82.2%, 52%, 0%, 40.4%)
CIE-LAB	lab(32.40, 14.97, -47.63)
CIE-LCH	lch(32.40, 49.93, 287.45°)
OKLab	oklab(42.22% -0.0229 -0.1372)
OKLCH	oklch(42.22% 0.139 260.5)
XYZ	xyz(8.5000, 7.2641, 30.6538)
Luminance	0.0727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4998 #986A1B

analogous

#1B8798 #1B4998 #2C1B98

triadic

#1B4998 #981B49 #49981B

tetradic

#1B4998 #981B87 #986A1B #1B982C

square

#1B4998 #981B87 #986A1B #1B982C

split-complementary

#1B4998 #982C1B #87981B

monochromatic

#091730 #123064 #1B4998 #2462CC #4E83E0

Accessibility & contrast

On white

8.56

#1B4998 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1B4998 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4998

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4998	#FFFFFF	#000000	##FFFFFF
##1B4998	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15529B

Deuteranopia (green-blind)

#004796

Tritanopia (blue-blind)

#005C69

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b4998;
/* rgb */ color: rgb(27, 73, 152);
/* oklch */ color: oklch(42.2% 0.139 260.5);

Tailwind

colors: {
  custom: {
    50: '#6d7bb7',
    500: '#1b4998',
    950: '#000000',
  },
}

SCSS

$custom: #1b4998;
$custom-light: #6d7bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4998",
  "rgb": {
    "r": 27,
    "g": 73,
    "b": 152
  },
  "hsl": {
    "h": 217.92,
    "s": 69.832,
    "l": 35.098
  },
  "oklch": {
    "l": 0.4222,
    "c": 0.13909,
    "h": 260.5
  },
  "luminance": 0.07265
}

Semantic roles & 50–950 ramp

primary

#1B4998

secondary

#C2974D

accent

#AB3BED

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4998

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

Preview Lab → · Contrast checker → · Palette generator →