#1B4D98#1B4D98

#1B4D98 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.1% C 0.134 H 258.8°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#1B4D98
RGB	rgb(27, 77, 152)
HSL	hsl(216, 70%, 35%)
HSV	hsv(216, 82%, 60%)
CMYK	cmyk(82.2%, 49.3%, 0%, 40.4%)
CIE-LAB	lab(33.58, 12.26, -45.73)
CIE-LCH	lch(33.58, 47.35, 285.00°)
OKLab	oklab(43.12% -0.026 -0.1315)
OKLCH	oklch(43.12% 0.134 258.8)
XYZ	xyz(8.7713, 7.8067, 30.7442)
Luminance	0.0781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4D98 #98661B

analogous

#1B8B98 #1B4D98 #281B98

triadic

#1B4D98 #981B4D #4D981B

tetradic

#1B4D98 #981B8B #98661B #1B9828

square

#1B4D98 #981B8B #98661B #1B9828

split-complementary

#1B4D98 #98281B #8B981B

monochromatic

#091830 #123364 #1B4D98 #2467CC #4E88E0

Accessibility & contrast

On white

8.20

#1B4D98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#1B4D98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4D98

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4D98	#FFFFFF	#000000	##FFFFFF
##1B4D98	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21559B

Deuteranopia (green-blind)

#004A97

Tritanopia (blue-blind)

#005F6B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b4d98;
/* rgb */ color: rgb(27, 77, 152);
/* oklch */ color: oklch(43.1% 0.134 258.8);

Tailwind

colors: {
  custom: {
    50: '#6d7eb7',
    500: '#1b4d98',
    950: '#000000',
  },
}

SCSS

$custom: #1b4d98;
$custom-light: #6d7eb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4d98",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 152
  },
  "hsl": {
    "h": 216,
    "s": 69.832,
    "l": 35.098
  },
  "oklch": {
    "l": 0.43121,
    "c": 0.13406,
    "h": 258.8
  },
  "luminance": 0.07808
}

Semantic roles & 50–950 ramp

primary

#1B4D98

secondary

#C2934D

accent

#A63BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4D98

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

Preview Lab → · Contrast checker → · Palette generator →