#1B41A6#1B41A6

#1B41A6 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.7% C 0.168 H 264.4°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#1B41A6
RGB	rgb(27, 65, 166)
HSL	hsl(224, 72%, 38%)
HSV	hsv(224, 84%, 65%)
CMYK	cmyk(83.7%, 60.8%, 0%, 34.9%)
CIE-LAB	lab(31.27, 26.02, -57.93)
CIE-LCH	lch(31.27, 63.51, 294.19°)
OKLab	oklab(41.71% -0.0165 -0.1676)
OKLCH	oklch(41.71% 0.168 264.4)
XYZ	xyz(9.2228, 6.7657, 36.8888)
Luminance	0.0677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B41A6 #A6801B

analogous

#1B86A6 #1B41A6 #3A1BA6

triadic

#1B41A6 #A61B41 #41A61B

tetradic

#1B41A6 #A61B86 #A6801B #1BA63A

square

#1B41A6 #A61B86 #A6801B #1BA63A

split-complementary

#1B41A6 #A63A1B #86A61B

monochromatic

#0A183D #122C71 #1B41A6 #2456DB #587EE4

Accessibility & contrast

On white

8.92

#1B41A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1B41A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B41A6

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B41A6	#FFFFFF	#000000	##FFFFFF
##1B41A6	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A9

Deuteranopia (green-blind)

#0043A4

Tritanopia (blue-blind)

#005B6D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b41a6;
/* rgb */ color: rgb(27, 65, 166);
/* oklch */ color: oklch(41.7% 0.168 264.4);

Tailwind

colors: {
  custom: {
    50: '#7175c1',
    500: '#1b41a6',
    950: '#000000',
  },
}

SCSS

$custom: #1b41a6;
$custom-light: #7175c1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b41a6",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 166
  },
  "hsl": {
    "h": 223.597,
    "s": 72.021,
    "l": 37.843
  },
  "oklch": {
    "l": 0.41711,
    "c": 0.16841,
    "h": 264.4
  },
  "luminance": 0.06767
}

Semantic roles & 50–950 ramp

primary

#1B41A6

secondary

#C7A856

accent

#BD39EF

background

#F7F7FC

surface

#EDEDF8

border

#C8C8D1

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1B41A6

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

Preview Lab → · Contrast checker → · Palette generator →