#1B41A7#1B41A7

#1B41A7 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.8% C 0.170 H 264.4°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#1B41A7
RGB	rgb(27, 65, 167)
HSL	hsl(224, 72%, 38%)
HSV	hsv(224, 84%, 65%)
CMYK	cmyk(83.8%, 61.1%, 0%, 34.5%)
CIE-LAB	lab(31.35, 26.42, -58.39)
CIE-LCH	lch(31.35, 64.09, 294.34°)
OKLab	oklab(41.8% -0.0164 -0.1689)
OKLCH	oklch(41.8% 0.17 264.4)
XYZ	xyz(9.3149, 6.8025, 37.3738)
Luminance	0.0680 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B41A7 #A7811B

analogous

#1B87A7 #1B41A7 #3B1BA7

triadic

#1B41A7 #A71B41 #41A71B

tetradic

#1B41A7 #A71B87 #A7811B #1BA73B

square

#1B41A7 #A71B87 #A7811B #1BA73B

split-complementary

#1B41A7 #A73B1B #87A71B

monochromatic

#0A183E #122C72 #1B41A7 #2456DC #587EE4

Accessibility & contrast

On white

8.90

#1B41A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#1B41A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B41A7

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B41A7	#FFFFFF	#000000	##FFFFFF
##1B41A7	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AA

Deuteranopia (green-blind)

#0043A5

Tritanopia (blue-blind)

#005B6D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b41a7;
/* rgb */ color: rgb(27, 65, 167);
/* oklch */ color: oklch(41.8% 0.170 264.4);

Tailwind

colors: {
  custom: {
    50: '#7275c2',
    500: '#1b41a7',
    950: '#000000',
  },
}

SCSS

$custom: #1b41a7;
$custom-light: #7275c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b41a7",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 167
  },
  "hsl": {
    "h": 223.714,
    "s": 72.165,
    "l": 38.039
  },
  "oklch": {
    "l": 0.41801,
    "c": 0.16975,
    "h": 264.4
  },
  "luminance": 0.06804
}

Semantic roles & 50–950 ramp

primary

#1B41A7

secondary

#C8A956

accent

#BD39EF

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1B41A7

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

Preview Lab → · Contrast checker → · Palette generator →