#1B459C#1B459C

#1B459C is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.7% C 0.150 H 262.5°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#1B459C
RGB	rgb(27, 69, 156)
HSL	hsl(220, 70%, 36%)
HSV	hsv(220, 83%, 61%)
CMYK	cmyk(82.7%, 55.8%, 0%, 38.8%)
CIE-LAB	lab(31.55, 19.32, -51.43)
CIE-LCH	lch(31.55, 54.94, 290.59°)
OKLab	oklab(41.67% -0.0196 -0.1484)
OKLCH	oklch(41.67% 0.15 262.5)
XYZ	xyz(8.5787, 6.8885, 32.3235)
Luminance	0.0689 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B459C #9C721B

analogous

#1B859C #1B459C #311B9C

triadic

#1B459C #9C1B45 #459C1B

tetradic

#1B459C #9C1B85 #9C721B #1B9C31

square

#1B459C #9C1B85 #9C721B #1B9C31

split-complementary

#1B459C #9C311B #859C1B

monochromatic

#091734 #122E68 #1B459C #245CD0 #5180E1

Accessibility & contrast

On white

8.83

#1B459C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1B459C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B459C

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B459C	#FFFFFF	#000000	##FFFFFF
##1B459C	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00509F

Deuteranopia (green-blind)

#00459A

Tritanopia (blue-blind)

#005B69

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b459c;
/* rgb */ color: rgb(27, 69, 156);
/* oklch */ color: oklch(41.7% 0.150 262.5);

Tailwind

colors: {
  custom: {
    50: '#6e78ba',
    500: '#1b459c',
    950: '#000000',
  },
}

SCSS

$custom: #1b459c;
$custom-light: #6e78ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1b459c",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 156
  },
  "hsl": {
    "h": 220.465,
    "s": 70.492,
    "l": 35.882
  },
  "oklch": {
    "l": 0.4167,
    "c": 0.14974,
    "h": 262.5
  },
  "luminance": 0.0689
}

Semantic roles & 50–950 ramp

primary

#1B459C

secondary

#C39E4F

accent

#B33BED

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1B459C

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

Preview Lab → · Contrast checker → · Palette generator →