#1B3893#1B3893

#1B3893 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.2% C 0.154 H 265.7°. Best body text is #FFFFFF at 10.33:1 contrast (WCAG AA passes).

Color values

HEX	#1B3893
RGB	rgb(27, 56, 147)
HSL	hsl(226, 69%, 34%)
HSV	hsv(226, 82%, 58%)
CMYK	cmyk(81.6%, 61.9%, 0%, 42.4%)
CIE-LAB	lab(27.21, 24.65, -53.02)
CIE-LCH	lch(27.21, 58.47, 294.93°)
OKLab	oklab(38.17% -0.0115 -0.1533)
OKLCH	oklch(38.17% 0.154 265.7)
XYZ	xyz(7.1308, 5.1671, 28.2196)
Luminance	0.0517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3893 #93761B

analogous

#1B7493 #1B3893 #3A1B93

triadic

#1B3893 #931B38 #38931B

tetradic

#1B3893 #931B74 #93761B #1B933A

square

#1B3893 #931B74 #93761B #1B933A

split-complementary

#1B3893 #933A1B #74931B

monochromatic

#08112C #12245F #1B3893 #244CC7 #4B6EDE

Accessibility & contrast

On white

10.33

#1B3893 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#1B3893 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3893

10.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3893	#FFFFFF	#000000	##FFFFFF
##1B3893	1.00	10.33	2.03	10.33
#FFFFFF	10.33	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004696

Deuteranopia (green-blind)

#003B91

Tritanopia (blue-blind)

#004F60

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1b3893;
/* rgb */ color: rgb(27, 56, 147);
/* oklch */ color: oklch(38.2% 0.154 265.7);

Tailwind

colors: {
  custom: {
    50: '#6d6eb4',
    500: '#1b3893',
    950: '#000000',
  },
}

SCSS

$custom: #1b3893;
$custom-light: #6d6eb4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3893",
  "rgb": {
    "r": 27,
    "g": 56,
    "b": 147
  },
  "hsl": {
    "h": 225.5,
    "s": 68.966,
    "l": 34.118
  },
  "oklch": {
    "l": 0.38173,
    "c": 0.15377,
    "h": 265.7
  },
  "luminance": 0.05168
}

Semantic roles & 50–950 ramp

primary

#1B3893

secondary

#C0A34A

accent

#C13CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1B3893

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

Preview Lab → · Contrast checker → · Palette generator →