#1B417C#1B417C

#1B417C is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.2% C 0.109 H 259.1°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#1B417C
RGB	rgb(27, 65, 124)
HSL	hsl(216, 64%, 30%)
HSV	hsv(216, 78%, 49%)
CMYK	cmyk(78.2%, 47.6%, 0%, 51.4%)
CIE-LAB	lab(28.03, 9.07, -37.41)
CIE-LCH	lch(28.03, 38.49, 283.64°)
OKLab	oklab(38.23% -0.0207 -0.1073)
OKLCH	oklch(38.23% 0.109 259.1)
XYZ	xyz(5.9791, 5.4682, 19.8052)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B417C #7C561B

analogous

#1B727C #1B417C #261B7C

triadic

#1B417C #7C1B41 #417C1B

tetradic

#1B417C #7C1B72 #7C561B #1B7C26

square

#1B417C #7C1B72 #7C561B #1B7C26

split-complementary

#1B417C #7C261B #727C1B

monochromatic

#050D19 #10274A #1B417C #265BAE #3D78D5

Accessibility & contrast

On white

10.03

#1B417C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1B417C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B417C

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B417C	#FFFFFF	#000000	##FFFFFF
##1B417C	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22477E

Deuteranopia (green-blind)

#0C3E7B

Tritanopia (blue-blind)

#004F58

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1b417c;
/* rgb */ color: rgb(27, 65, 124);
/* oklch */ color: oklch(38.2% 0.109 259.1);

Tailwind

colors: {
  custom: {
    50: '#6675a2',
    500: '#1b417c',
    950: '#000000',
  },
}

SCSS

$custom: #1b417c;
$custom-light: #6675a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b417c",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 124
  },
  "hsl": {
    "h": 216.495,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.38234,
    "c": 0.10925,
    "h": 259.1
  },
  "luminance": 0.05469
}

Semantic roles & 50–950 ramp

primary

#1B417C

secondary

#B08543

accent

#A641E7

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1B417C

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

Preview Lab → · Contrast checker → · Palette generator →