#1B3194#1B3194

#1B3194 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.164 H 267.4°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#1B3194
RGB	rgb(27, 49, 148)
HSL	hsl(229, 69%, 34%)
HSV	hsv(229, 82%, 58%)
CMYK	cmyk(81.8%, 66.9%, 0%, 42%)
CIE-LAB	lab(25.46, 29.80, -56.49)
CIE-LCH	lch(25.46, 63.87, 297.81°)
OKLab	oklab(36.91% -0.0075 -0.1636)
OKLCH	oklch(36.91% 0.164 267.4)
XYZ	xyz(6.8937, 4.5669, 28.5294)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3194 #947E1B

analogous

#1B6E94 #1B3194 #421B94

triadic

#1B3194 #941B31 #31941B

tetradic

#1B3194 #941B6E #947E1B #1B9442

square

#1B3194 #941B6E #947E1B #1B9442

split-complementary

#1B3194 #94421B #6E941B

monochromatic

#080F2C #122060 #1B3194 #2442C8 #4B66DE

Accessibility & contrast

On white

10.97

#1B3194 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1B3194 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3194

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3194	#FFFFFF	#000000	##FFFFFF
##1B3194	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004297

Deuteranopia (green-blind)

#003792

Tritanopia (blue-blind)

#004C5E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1b3194;
/* rgb */ color: rgb(27, 49, 148);
/* oklch */ color: oklch(36.9% 0.164 267.4);

Tailwind

colors: {
  custom: {
    50: '#6e69b4',
    500: '#1b3194',
    950: '#000000',
  },
}

SCSS

$custom: #1b3194;
$custom-light: #6e69b4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3194",
  "rgb": {
    "r": 27,
    "g": 49,
    "b": 148
  },
  "hsl": {
    "h": 229.091,
    "s": 69.143,
    "l": 34.314
  },
  "oklch": {
    "l": 0.36914,
    "c": 0.16374,
    "h": 267.4
  },
  "luminance": 0.04568
}

Semantic roles & 50–950 ramp

primary

#1B3194

secondary

#C0AB4B

accent

#CC3CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1B3194

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

Preview Lab → · Contrast checker → · Palette generator →