#1B419B#1B419B

#1B419B is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.7% C 0.153 H 263.7°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#1B419B
RGB	rgb(27, 65, 155)
HSL	hsl(222, 70%, 36%)
HSV	hsv(222, 83%, 61%)
CMYK	cmyk(82.6%, 58.1%, 0%, 39.2%)
CIE-LAB	lab(30.35, 21.66, -52.78)
CIE-LCH	lch(30.35, 57.05, 292.31°)
OKLab	oklab(40.74% -0.017 -0.1525)
OKLCH	oklch(40.74% 0.153 263.7)
XYZ	xyz(8.2566, 6.3792, 31.8001)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B419B #9B751B

analogous

#1B819B #1B419B #351B9B

triadic

#1B419B #9B1B41 #419B1B

tetradic

#1B419B #9B1B81 #9B751B #1B9B35

square

#1B419B #9B1B81 #9B751B #1B9B35

split-complementary

#1B419B #9B351B #819B1B

monochromatic

#091533 #122B67 #1B419B #2457CF #507BE0

Accessibility & contrast

On white

9.23

#1B419B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#1B419B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B419B

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B419B	#FFFFFF	#000000	##FFFFFF
##1B419B	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9E

Deuteranopia (green-blind)

#004299

Tritanopia (blue-blind)

#005867

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b419b;
/* rgb */ color: rgb(27, 65, 155);
/* oklch */ color: oklch(40.7% 0.153 263.7);

Tailwind

colors: {
  custom: {
    50: '#6e75b9',
    500: '#1b419b',
    950: '#000000',
  },
}

SCSS

$custom: #1b419b;
$custom-light: #6e75b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b419b",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 155
  },
  "hsl": {
    "h": 222.188,
    "s": 70.33,
    "l": 35.686
  },
  "oklch": {
    "l": 0.40737,
    "c": 0.15343,
    "h": 263.7
  },
  "luminance": 0.0638
}

Semantic roles & 50–950 ramp

primary

#1B419B

secondary

#C3A14F

accent

#B83BED

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1B419B

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

Preview Lab → · Contrast checker → · Palette generator →