#1B4898#1B4898

#1B4898 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.0% C 0.140 H 260.9°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#1B4898
RGB	rgb(27, 72, 152)
HSL	hsl(218, 70%, 35%)
HSV	hsv(218, 82%, 60%)
CMYK	cmyk(82.2%, 52.6%, 0%, 40.4%)
CIE-LAB	lab(32.11, 15.65, -48.10)
CIE-LCH	lch(32.11, 50.59, 288.03°)
OKLab	oklab(42% -0.0222 -0.1386)
OKLCH	oklch(42% 0.14 260.9)
XYZ	xyz(8.4348, 7.1337, 30.6321)
Luminance	0.0713 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4898 #986B1B

analogous

#1B8698 #1B4898 #2D1B98

triadic

#1B4898 #981B48 #48981B

tetradic

#1B4898 #981B86 #986B1B #1B982D

square

#1B4898 #981B86 #986B1B #1B982D

split-complementary

#1B4898 #982D1B #86981B

monochromatic

#091730 #122F64 #1B4898 #2461CC #4E82E0

Accessibility & contrast

On white

8.65

#1B4898 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1B4898 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4898

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4898	#FFFFFF	#000000	##FFFFFF
##1B4898	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11529B

Deuteranopia (green-blind)

#004696

Tritanopia (blue-blind)

#005B69

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b4898;
/* rgb */ color: rgb(27, 72, 152);
/* oklch */ color: oklch(42.0% 0.140 260.9);

Tailwind

colors: {
  custom: {
    50: '#6d7ab7',
    500: '#1b4898',
    950: '#000000',
  },
}

SCSS

$custom: #1b4898;
$custom-light: #6d7ab7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4898",
  "rgb": {
    "r": 27,
    "g": 72,
    "b": 152
  },
  "hsl": {
    "h": 218.4,
    "s": 69.832,
    "l": 35.098
  },
  "oklch": {
    "l": 0.41998,
    "c": 0.14035,
    "h": 260.9
  },
  "luminance": 0.07135
}

Semantic roles & 50–950 ramp

primary

#1B4898

secondary

#C2984D

accent

#AD3BED

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4898

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

Preview Lab → · Contrast checker → · Palette generator →