#1B2586#1B2586

#1B2586 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.3% C 0.159 H 269.9°. Best body text is #FFFFFF at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#1B2586
RGB	rgb(27, 37, 134)
HSL	hsl(234, 66%, 32%)
HSV	hsv(234, 80%, 53%)
CMYK	cmyk(79.9%, 72.4%, 0%, 47.5%)
CIE-LAB	lab(21.12, 32.40, -54.93)
CIE-LCH	lch(21.12, 63.77, 300.53°)
OKLab	oklab(33.33% -0.0002 -0.1591)
OKLCH	oklch(33.33% 0.159 269.9)
XYZ	xyz(5.4152, 3.2768, 22.8967)
Luminance	0.0328 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2586 #867C1B

analogous

#1B5B86 #1B2586 #471B86

triadic

#1B2586 #861B25 #25861B

tetradic

#1B2586 #861B5B #867C1B #1B8647

square

#1B2586 #861B5B #867C1B #1B8647

split-complementary

#1B2586 #86471B #5B861B

monochromatic

#060920 #111753 #1B2586 #2533B9 #4250D9

Accessibility & contrast

On white

12.69

#1B2586 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#1B2586 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2586

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2586	#FFFFFF	#000000	##FFFFFF
##1B2586	1.00	12.69	1.66	12.69
#FFFFFF	12.69	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003889

Deuteranopia (green-blind)

#002E84

Tritanopia (blue-blind)

#004052

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1b2586;
/* rgb */ color: rgb(27, 37, 134);
/* oklch */ color: oklch(33.3% 0.159 269.9);

Tailwind

colors: {
  custom: {
    50: '#6b60aa',
    500: '#1b2586',
    950: '#000000',
  },
}

SCSS

$custom: #1b2586;
$custom-light: #6b60aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2586",
  "rgb": {
    "r": 27,
    "g": 37,
    "b": 134
  },
  "hsl": {
    "h": 234.393,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.33329,
    "c": 0.15907,
    "h": 269.9
  },
  "luminance": 0.03277
}

Semantic roles & 50–950 ramp

primary

#1B2586

secondary

#B9AE44

accent

#D93EE9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1B2586

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

Preview Lab → · Contrast checker → · Palette generator →