#1B417E#1B417E

#1B417E is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.4% C 0.112 H 259.5°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#1B417E
RGB	rgb(27, 65, 126)
HSL	hsl(217, 65%, 30%)
HSV	hsv(217, 79%, 49%)
CMYK	cmyk(78.6%, 48.4%, 0%, 50.6%)
CIE-LAB	lab(28.17, 9.89, -38.44)
CIE-LCH	lch(28.17, 39.69, 284.43°)
OKLab	oklab(38.38% -0.0203 -0.1103)
OKLCH	oklch(38.38% 0.112 259.5)
XYZ	xyz(6.1068, 5.5193, 20.4781)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B417E #7E581B

analogous

#1B727E #1B417E #271B7E

triadic

#1B417E #7E1B41 #417E1B

tetradic

#1B417E #7E1B72 #7E581B #1B7E27

square

#1B417E #7E1B72 #7E581B #1B7E27

split-complementary

#1B417E #7E271B #727E1B

monochromatic

#050D19 #10274C #1B417E #265BB0 #3E78D6

Accessibility & contrast

On white

9.98

#1B417E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1B417E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B417E

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B417E	#FFFFFF	#000000	##FFFFFF
##1B417E	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204780

Deuteranopia (green-blind)

#063E7D

Tritanopia (blue-blind)

#004F59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1b417e;
/* rgb */ color: rgb(27, 65, 126);
/* oklch */ color: oklch(38.4% 0.112 259.5);

Tailwind

colors: {
  custom: {
    50: '#6775a4',
    500: '#1b417e',
    950: '#000000',
  },
}

SCSS

$custom: #1b417e;
$custom-light: #6775a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b417e",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 126
  },
  "hsl": {
    "h": 216.97,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.38384,
    "c": 0.11217,
    "h": 259.5
  },
  "luminance": 0.0552
}

Semantic roles & 50–950 ramp

primary

#1B417E

secondary

#B28743

accent

#A740E8

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1B417E

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

Preview Lab → · Contrast checker → · Palette generator →