#1B2490#1B2490

#1B2490 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.3% C 0.173 H 269.6°. Best body text is #FFFFFF at 12.34:1 contrast (WCAG AA passes).

Color values

HEX	#1B2490
RGB	rgb(27, 36, 144)
HSL	hsl(235, 68%, 34%)
HSV	hsv(235, 81%, 56%)
CMYK	cmyk(81.3%, 75%, 0%, 43.5%)
CIE-LAB	lab(21.97, 36.68, -59.77)
CIE-LCH	lch(21.97, 70.13, 301.54°)
OKLab	oklab(34.26% -0.0011 -0.1731)
OKLCH	oklch(34.26% 0.173 269.6)
XYZ	xyz(6.1152, 3.5077, 26.7349)
Luminance	0.0351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2490 #90871B

analogous

#1B5E90 #1B2490 #4C1B90

triadic

#1B2490 #901B24 #24901B

tetradic

#1B2490 #901B5E #90871B #1B904C

square

#1B2490 #901B5E #90871B #1B904C

split-complementary

#1B2490 #904C1B #5E901B

monochromatic

#080A29 #11175C #1B2490 #2531C4 #4954DD

Accessibility & contrast

On white

12.34

#1B2490 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1B2490 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2490

12.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2490	#FFFFFF	#000000	##FFFFFF
##1B2490	1.00	12.34	1.70	12.34
#FFFFFF	12.34	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A93

Deuteranopia (green-blind)

#002F8E

Tritanopia (blue-blind)

#004358

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2490;
/* rgb */ color: rgb(27, 36, 144);
/* oklch */ color: oklch(34.3% 0.173 269.6);

Tailwind

colors: {
  custom: {
    50: '#6e60b2',
    500: '#1b2490',
    950: '#000000',
  },
}

SCSS

$custom: #1b2490;
$custom-light: #6e60b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2490",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 144
  },
  "hsl": {
    "h": 235.385,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.34262,
    "c": 0.17314,
    "h": 269.6
  },
  "luminance": 0.03508
}

Semantic roles & 50–950 ramp

primary

#1B2490

secondary

#BFB548

accent

#DE3DEB

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1B2490

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

Preview Lab → · Contrast checker → · Palette generator →