#1B418F#1B418F

#1B418F is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.7% C 0.137 H 262.5°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#1B418F
RGB	rgb(27, 65, 143)
HSL	hsl(220, 68%, 33%)
HSV	hsv(220, 81%, 56%)
CMYK	cmyk(81.1%, 54.5%, 0%, 43.9%)
CIE-LAB	lab(29.40, 16.82, -46.99)
CIE-LCH	lch(29.40, 49.91, 289.70°)
OKLab	oklab(39.72% -0.0179 -0.1355)
OKLCH	oklch(39.72% 0.137 262.5)
XYZ	xyz(7.2984, 5.9959, 26.7539)
Luminance	0.0600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B418F #8F691B

analogous

#1B7B8F #1B418F #2F1B8F

triadic

#1B418F #8F1B41 #418F1B

tetradic

#1B418F #8F1B7B #8F691B #1B8F2F

square

#1B418F #8F1B7B #8F691B #1B8F2F

split-complementary

#1B418F #8F2F1B #7B8F1B

monochromatic

#081228 #112A5C #1B418F #2558C2 #4879DC

Accessibility & contrast

On white

9.55

#1B418F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#1B418F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B418F

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B418F	#FFFFFF	#000000	##FFFFFF
##1B418F	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#034B92

Deuteranopia (green-blind)

#00408D

Tritanopia (blue-blind)

#005461

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1b418f;
/* rgb */ color: rgb(27, 65, 143);
/* oklch */ color: oklch(39.7% 0.137 262.5);

Tailwind

colors: {
  custom: {
    50: '#6b75b0',
    500: '#1b418f',
    950: '#000000',
  },
}

SCSS

$custom: #1b418f;
$custom-light: #6b75b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b418f",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 143
  },
  "hsl": {
    "h": 220.345,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.39723,
    "c": 0.13664,
    "h": 262.5
  },
  "luminance": 0.05997
}

Semantic roles & 50–950 ramp

primary

#1B418F

secondary

#BE9748

accent

#B23DEB

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1B418F

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

Preview Lab → · Contrast checker → · Palette generator →