#1B3E93#1B3E93

#1B3E93 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.4% C 0.146 H 263.9°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#1B3E93
RGB	rgb(27, 62, 147)
HSL	hsl(223, 69%, 34%)
HSV	hsv(223, 82%, 58%)
CMYK	cmyk(81.6%, 57.8%, 0%, 42.4%)
CIE-LAB	lab(28.86, 20.51, -50.32)
CIE-LCH	lch(28.86, 54.34, 292.18°)
OKLab	oklab(39.41% -0.0154 -0.1453)
OKLCH	oklch(39.41% 0.146 263.9)
XYZ	xyz(7.4392, 5.7840, 28.3224)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3E93 #93701B

analogous

#1B7A93 #1B3E93 #341B93

triadic

#1B3E93 #931B3E #3E931B

tetradic

#1B3E93 #931B7A #93701B #1B9334

square

#1B3E93 #931B7A #93701B #1B9334

split-complementary

#1B3E93 #93341B #7A931B

monochromatic

#08122C #12285F #1B3E93 #2454C7 #4B76DE

Accessibility & contrast

On white

9.74

#1B3E93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1B3E93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3E93

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3E93	#FFFFFF	#000000	##FFFFFF
##1B3E93	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A96

Deuteranopia (green-blind)

#003F91

Tritanopia (blue-blind)

#005362

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1b3e93;
/* rgb */ color: rgb(27, 62, 147);
/* oklch */ color: oklch(39.4% 0.146 263.9);

Tailwind

colors: {
  custom: {
    50: '#6d72b3',
    500: '#1b3e93',
    950: '#000000',
  },
}

SCSS

$custom: #1b3e93;
$custom-light: #6d72b3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3e93",
  "rgb": {
    "r": 27,
    "g": 62,
    "b": 147
  },
  "hsl": {
    "h": 222.5,
    "s": 68.966,
    "l": 34.118
  },
  "oklch": {
    "l": 0.39413,
    "c": 0.14614,
    "h": 263.9
  },
  "luminance": 0.05785
}

Semantic roles & 50–950 ramp

primary

#1B3E93

secondary

#C09D4A

accent

#B93CEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1B3E93

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

Preview Lab → · Contrast checker → · Palette generator →