#1B4393#1B4393

#1B4393 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.5% C 0.140 H 262.2°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#1B4393
RGB	rgb(27, 67, 147)
HSL	hsl(220, 69%, 34%)
HSV	hsv(220, 82%, 58%)
CMYK	cmyk(81.6%, 54.4%, 0%, 42.4%)
CIE-LAB	lab(30.29, 17.06, -48.01)
CIE-LCH	lch(30.29, 50.95, 289.56°)
OKLab	oklab(40.49% -0.019 -0.1384)
OKLCH	oklch(40.49% 0.14 262.2)
XYZ	xyz(7.7237, 6.3530, 28.4173)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4393 #936B1B

analogous

#1B7F93 #1B4393 #2F1B93

triadic

#1B4393 #931B43 #43931B

tetradic

#1B4393 #931B7F #936B1B #1B932F

square

#1B4393 #931B7F #936B1B #1B932F

split-complementary

#1B4393 #932F1B #7F931B

monochromatic

#08142C #122B5F #1B4393 #245BC7 #4B7CDE

Accessibility & contrast

On white

9.25

#1B4393 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1B4393 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4393

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4393	#FFFFFF	#000000	##FFFFFF
##1B4393	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#034D96

Deuteranopia (green-blind)

#004291

Tritanopia (blue-blind)

#005764

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b4393;
/* rgb */ color: rgb(27, 67, 147);
/* oklch */ color: oklch(40.5% 0.140 262.2);

Tailwind

colors: {
  custom: {
    50: '#6c76b3',
    500: '#1b4393',
    950: '#000000',
  },
}

SCSS

$custom: #1b4393;
$custom-light: #6c76b3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4393",
  "rgb": {
    "r": 27,
    "g": 67,
    "b": 147
  },
  "hsl": {
    "h": 220,
    "s": 68.966,
    "l": 34.118
  },
  "oklch": {
    "l": 0.40491,
    "c": 0.13972,
    "h": 262.2
  },
  "luminance": 0.06354
}

Semantic roles & 50–950 ramp

primary

#1B4393

secondary

#C0994A

accent

#B13CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1B4393

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

Preview Lab → · Contrast checker → · Palette generator →