#1B4A93#1B4A93

#1B4A93 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.1% C 0.131 H 259.2°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#1B4A93
RGB	rgb(27, 74, 147)
HSL	hsl(217, 69%, 34%)
HSV	hsv(217, 82%, 58%)
CMYK	cmyk(81.6%, 49.7%, 0%, 42.4%)
CIE-LAB	lab(32.34, 12.27, -44.69)
CIE-LCH	lch(32.34, 46.34, 285.35°)
OKLab	oklab(42.06% -0.0244 -0.1285)
OKLCH	oklch(42.06% 0.131 259.2)
XYZ	xyz(8.1653, 7.2362, 28.5645)
Luminance	0.0724 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4A93 #93641B

analogous

#1B8693 #1B4A93 #281B93

triadic

#1B4A93 #931B4A #4A931B

tetradic

#1B4A93 #931B86 #93641B #1B9328

square

#1B4A93 #931B86 #93641B #1B9328

split-complementary

#1B4A93 #93281B #86931B

monochromatic

#08162C #12305F #1B4A93 #2464C7 #4B84DE

Accessibility & contrast

On white

8.58

#1B4A93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1B4A93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4A93

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4A93	#FFFFFF	#000000	##FFFFFF
##1B4A93	1.00	8.58	2.45	8.58
#FFFFFF	8.58	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F5296

Deuteranopia (green-blind)

#004792

Tritanopia (blue-blind)

#005C67

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b4a93;
/* rgb */ color: rgb(27, 74, 147);
/* oklch */ color: oklch(42.1% 0.131 259.2);

Tailwind

colors: {
  custom: {
    50: '#6c7bb3',
    500: '#1b4a93',
    950: '#000000',
  },
}

SCSS

$custom: #1b4a93;
$custom-light: #6c7bb3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4a93",
  "rgb": {
    "r": 27,
    "g": 74,
    "b": 147
  },
  "hsl": {
    "h": 216.5,
    "s": 68.966,
    "l": 34.118
  },
  "oklch": {
    "l": 0.42059,
    "c": 0.13081,
    "h": 259.2
  },
  "luminance": 0.07237
}

Semantic roles & 50–950 ramp

primary

#1B4A93

secondary

#C0924A

accent

#A73CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4A93

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

Preview Lab → · Contrast checker → · Palette generator →