#1B4595#1B4595

#1B4595 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.1% C 0.140 H 261.7°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#1B4595
RGB	rgb(27, 69, 149)
HSL	hsl(219, 69%, 35%)
HSV	hsv(219, 82%, 58%)
CMYK	cmyk(81.9%, 53.7%, 0%, 41.6%)
CIE-LAB	lab(31.02, 16.50, -48.05)
CIE-LCH	lch(31.02, 50.80, 288.95°)
OKLab	oklab(41.09% -0.0203 -0.1385)
OKLCH	oklch(41.09% 0.14 261.7)
XYZ	xyz(8.0030, 6.6582, 29.2913)
Luminance	0.0666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4595 #956B1B

analogous

#1B8295 #1B4595 #2E1B95

triadic

#1B4595 #951B45 #45951B

tetradic

#1B4595 #951B82 #956B1B #1B952E

square

#1B4595 #951B82 #956B1B #1B952E

split-complementary

#1B4595 #952E1B #82951B

monochromatic

#08152D #122D61 #1B4595 #245DC9 #4C7EDF

Accessibility & contrast

On white

9.01

#1B4595 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1B4595 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4595

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4595	#FFFFFF	#000000	##FFFFFF
##1B4595	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#094F98

Deuteranopia (green-blind)

#004493

Tritanopia (blue-blind)

#005966

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1b4595;
/* rgb */ color: rgb(27, 69, 149);
/* oklch */ color: oklch(41.1% 0.140 261.7);

Tailwind

colors: {
  custom: {
    50: '#6d78b5',
    500: '#1b4595',
    950: '#000000',
  },
}

SCSS

$custom: #1b4595;
$custom-light: #6d78b5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4595",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 149
  },
  "hsl": {
    "h": 219.344,
    "s": 69.318,
    "l": 34.51
  },
  "oklch": {
    "l": 0.41094,
    "c": 0.13997,
    "h": 261.7
  },
  "luminance": 0.06659
}

Semantic roles & 50–950 ramp

primary

#1B4595

secondary

#C1984B

accent

#AF3CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1B4595

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

Preview Lab → · Contrast checker → · Palette generator →