#1B4B93#1B4B93

#1B4B93 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.3% C 0.130 H 258.8°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#1B4B93
RGB	rgb(27, 75, 147)
HSL	hsl(216, 69%, 34%)
HSV	hsv(216, 82%, 58%)
CMYK	cmyk(81.6%, 49%, 0%, 42.4%)
CIE-LAB	lab(32.64, 11.59, -44.21)
CIE-LCH	lch(32.64, 45.70, 284.68°)
OKLab	oklab(42.29% -0.0253 -0.1271)
OKLCH	oklch(42.29% 0.13 258.8)
XYZ	xyz(8.2326, 7.3708, 28.5869)
Luminance	0.0737 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4B93 #93631B

analogous

#1B8793 #1B4B93 #271B93

triadic

#1B4B93 #931B4B #4B931B

tetradic

#1B4B93 #931B87 #93631B #1B9327

square

#1B4B93 #931B87 #93631B #1B9327

split-complementary

#1B4B93 #93271B #87931B

monochromatic

#08162C #12315F #1B4B93 #2465C7 #4B85DE

Accessibility & contrast

On white

8.49

#1B4B93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1B4B93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4B93

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4B93	#FFFFFF	#000000	##FFFFFF
##1B4B93	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225396

Deuteranopia (green-blind)

#004892

Tritanopia (blue-blind)

#005C68

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b4b93;
/* rgb */ color: rgb(27, 75, 147);
/* oklch */ color: oklch(42.3% 0.130 258.8);

Tailwind

colors: {
  custom: {
    50: '#6c7cb3',
    500: '#1b4b93',
    950: '#000000',
  },
}

SCSS

$custom: #1b4b93;
$custom-light: #6c7cb3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4b93",
  "rgb": {
    "r": 27,
    "g": 75,
    "b": 147
  },
  "hsl": {
    "h": 216,
    "s": 68.966,
    "l": 34.118
  },
  "oklch": {
    "l": 0.42288,
    "c": 0.12956,
    "h": 258.8
  },
  "luminance": 0.07372
}

Semantic roles & 50–950 ramp

primary

#1B4B93

secondary

#C0914A

accent

#A53CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4B93

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

Preview Lab → · Contrast checker → · Palette generator →