#1B417A#1B417A

#1B417A is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.1% C 0.106 H 258.6°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#1B417A
RGB	rgb(27, 65, 122)
HSL	hsl(216, 64%, 29%)
HSV	hsv(216, 78%, 48%)
CMYK	cmyk(77.9%, 46.7%, 0%, 52.2%)
CIE-LAB	lab(27.89, 8.26, -36.37)
CIE-LCH	lch(27.89, 37.29, 282.79°)
OKLab	oklab(38.09% -0.0211 -0.1042)
OKLCH	oklch(38.09% 0.106 258.6)
XYZ	xyz(5.8539, 5.4181, 19.1459)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B417A #7A541B

analogous

#1B717A #1B417A #251B7A

triadic

#1B417A #7A1B41 #417A1B

tetradic

#1B417A #7A1B71 #7A541B #1B7A25

square

#1B417A #7A1B71 #7A541B #1B7A25

split-complementary

#1B417A #7A251B #717A1B

monochromatic

#060D19 #102648 #1B417A #265CAC #3C78D4

Accessibility & contrast

On white

10.08

#1B417A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1B417A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B417A

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B417A	#FFFFFF	#000000	##FFFFFF
##1B417A	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24477C

Deuteranopia (green-blind)

#103E79

Tritanopia (blue-blind)

#004E57

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1b417a;
/* rgb */ color: rgb(27, 65, 122);
/* oklch */ color: oklch(38.1% 0.106 258.6);

Tailwind

colors: {
  custom: {
    50: '#6675a1',
    500: '#1b417a',
    950: '#000000',
  },
}

SCSS

$custom: #1b417a;
$custom-light: #6675a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b417a",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 122
  },
  "hsl": {
    "h": 216,
    "s": 63.758,
    "l": 29.216
  },
  "oklch": {
    "l": 0.38087,
    "c": 0.10632,
    "h": 258.6
  },
  "luminance": 0.05419
}

Semantic roles & 50–950 ramp

primary

#1B417A

secondary

#AE8343

accent

#A441E7

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #1B417A

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

Preview Lab → · Contrast checker → · Palette generator →