#1B4F98#1B4F98

#1B4F98 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 43.6% C 0.132 H 257.9°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#1B4F98
RGB	rgb(27, 79, 152)
HSL	hsl(215, 70%, 35%)
HSV	hsv(215, 82%, 60%)
CMYK	cmyk(82.2%, 48%, 0%, 40.4%)
CIE-LAB	lab(34.17, 10.91, -44.77)
CIE-LCH	lch(34.17, 46.08, 283.69°)
OKLab	oklab(43.58% -0.0276 -0.1286)
OKLCH	oklch(43.58% 0.132 257.9)
XYZ	xyz(8.9134, 8.0909, 30.7916)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4F98 #98641B

analogous

#1B8D98 #1B4F98 #261B98

triadic

#1B4F98 #981B4F #4F981B

tetradic

#1B4F98 #981B8D #98641B #1B9826

square

#1B4F98 #981B8D #98641B #1B9826

split-complementary

#1B4F98 #98261B #8D981B

monochromatic

#091930 #123464 #1B4F98 #246ACC #4E8AE0

Accessibility & contrast

On white

8.02

#1B4F98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#1B4F98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4F98

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4F98	#FFFFFF	#000000	##FFFFFF
##1B4F98	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26569B

Deuteranopia (green-blind)

#004B97

Tritanopia (blue-blind)

#00616C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b4f98;
/* rgb */ color: rgb(27, 79, 152);
/* oklch */ color: oklch(43.6% 0.132 257.9);

Tailwind

colors: {
  custom: {
    50: '#6d7fb7',
    500: '#1b4f98',
    950: '#000000',
  },
}

SCSS

$custom: #1b4f98;
$custom-light: #6d7fb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4f98",
  "rgb": {
    "r": 27,
    "g": 79,
    "b": 152
  },
  "hsl": {
    "h": 215.04,
    "s": 69.832,
    "l": 35.098
  },
  "oklch": {
    "l": 0.43579,
    "c": 0.13158,
    "h": 257.9
  },
  "luminance": 0.08092
}

Semantic roles & 50–950 ramp

primary

#1B4F98

secondary

#C2914D

accent

#A33BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1B4F98

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

Preview Lab → · Contrast checker → · Palette generator →