#1B248E#1B248E

#1B248E is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.0% C 0.171 H 269.7°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#1B248E
RGB	rgb(27, 36, 142)
HSL	hsl(235, 68%, 33%)
HSV	hsv(235, 81%, 56%)
CMYK	cmyk(81%, 74.6%, 0%, 44.3%)
CIE-LAB	lab(21.75, 35.96, -58.89)
CIE-LCH	lch(21.75, 69.00, 301.41°)
OKLab	oklab(34.04% -0.0008 -0.1706)
OKLCH	oklch(34.04% 0.171 269.7)
XYZ	xyz(5.9637, 3.4471, 25.9370)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B248E #8E851B

analogous

#1B5D8E #1B248E #4B1B8E

triadic

#1B248E #8E1B24 #248E1B

tetradic

#1B248E #8E1B5D #8E851B #1B8E4B

square

#1B248E #8E1B5D #8E851B #1B8E4B

split-complementary

#1B248E #8E4B1B #5D8E1B

monochromatic

#070A27 #11175B #1B248E #2531C1 #4753DC

Accessibility & contrast

On white

12.43

#1B248E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1B248E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B248E

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B248E	#FFFFFF	#000000	##FFFFFF
##1B248E	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A91

Deuteranopia (green-blind)

#002E8C

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b248e;
/* rgb */ color: rgb(27, 36, 142);
/* oklch */ color: oklch(34.0% 0.171 269.7);

Tailwind

colors: {
  custom: {
    50: '#6e60b0',
    500: '#1b248e',
    950: '#000000',
  },
}

SCSS

$custom: #1b248e;
$custom-light: #6e60b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b248e",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 142
  },
  "hsl": {
    "h": 235.304,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.3404,
    "c": 0.17058,
    "h": 269.7
  },
  "luminance": 0.03448
}

Semantic roles & 50–950 ramp

primary

#1B248E

secondary

#BEB447

accent

#DD3DEB

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #1B248E

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

Preview Lab → · Contrast checker → · Palette generator →