#1B4498#1B4498

#1B4498 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.1% C 0.145 H 262.4°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#1B4498
RGB	rgb(27, 68, 152)
HSL	hsl(220, 70%, 35%)
HSV	hsv(220, 82%, 60%)
CMYK	cmyk(82.2%, 55.3%, 0%, 40.4%)
CIE-LAB	lab(30.96, 18.39, -49.97)
CIE-LCH	lch(30.96, 53.25, 290.21°)
OKLab	oklab(41.12% -0.0192 -0.1442)
OKLCH	oklch(41.12% 0.145 262.4)
XYZ	xyz(8.1846, 6.6333, 30.5487)
Luminance	0.0663 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4498 #986F1B

analogous

#1B8298 #1B4498 #311B98

triadic

#1B4498 #981B44 #44981B

tetradic

#1B4498 #981B82 #986F1B #1B9831

square

#1B4498 #981B82 #986F1B #1B9831

split-complementary

#1B4498 #98311B #82981B

monochromatic

#091630 #122D64 #1B4498 #245BCC #4E7EE0

Accessibility & contrast

On white

9.03

#1B4498 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1B4498 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4498

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4498	#FFFFFF	#000000	##FFFFFF
##1B4498	1.00	9.03	2.33	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9B

Deuteranopia (green-blind)

#004396

Tritanopia (blue-blind)

#005967

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1b4498;
/* rgb */ color: rgb(27, 68, 152);
/* oklch */ color: oklch(41.1% 0.145 262.4);

Tailwind

colors: {
  custom: {
    50: '#6d77b7',
    500: '#1b4498',
    950: '#000000',
  },
}

SCSS

$custom: #1b4498;
$custom-light: #6d77b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4498",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 152
  },
  "hsl": {
    "h": 220.32,
    "s": 69.832,
    "l": 35.098
  },
  "oklch": {
    "l": 0.41121,
    "c": 0.14545,
    "h": 262.4
  },
  "luminance": 0.06634
}

Semantic roles & 50–950 ramp

primary

#1B4498

secondary

#C29C4D

accent

#B23BED

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1B4498

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

Preview Lab → · Contrast checker → · Palette generator →