#1B4E98#1B4E98

#1B4E98 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.4% C 0.133 H 258.3°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E98
RGB	rgb(27, 78, 152)
HSL	hsl(216, 70%, 35%)
HSV	hsv(216, 82%, 60%)
CMYK	cmyk(82.2%, 48.7%, 0%, 40.4%)
CIE-LAB	lab(33.87, 11.58, -45.25)
CIE-LCH	lch(33.87, 46.71, 284.35°)
OKLab	oklab(43.35% -0.0268 -0.1301)
OKLCH	oklch(43.35% 0.133 258.3)
XYZ	xyz(8.8418, 7.9477, 30.7677)
Luminance	0.0795 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E98 #98651B

analogous

#1B8C98 #1B4E98 #271B98

triadic

#1B4E98 #981B4E #4E981B

tetradic

#1B4E98 #981B8C #98651B #1B9827

square

#1B4E98 #981B8C #98651B #1B9827

split-complementary

#1B4E98 #98271B #8C981B

monochromatic

#091930 #123364 #1B4E98 #2469CC #4E89E0

Accessibility & contrast

On white

8.11

#1B4E98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#1B4E98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E98

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E98	#FFFFFF	#000000	##FFFFFF
##1B4E98	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24569B

Deuteranopia (green-blind)

#004A97

Tritanopia (blue-blind)

#00606B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b4e98;
/* rgb */ color: rgb(27, 78, 152);
/* oklch */ color: oklch(43.4% 0.133 258.3);

Tailwind

colors: {
  custom: {
    50: '#6d7eb7',
    500: '#1b4e98',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e98;
$custom-light: #6d7eb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e98",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 152
  },
  "hsl": {
    "h": 215.52,
    "s": 69.832,
    "l": 35.098
  },
  "oklch": {
    "l": 0.4335,
    "c": 0.13282,
    "h": 258.3
  },
  "luminance": 0.07949
}

Semantic roles & 50–950 ramp

primary

#1B4E98

secondary

#C2924D

accent

#A43BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1B4E98

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

Preview Lab → · Contrast checker → · Palette generator →