#1B408E#1B408E

#1B408E is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.4% C 0.137 H 262.7°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#1B408E
RGB	rgb(27, 64, 142)
HSL	hsl(221, 68%, 33%)
HSV	hsv(221, 81%, 56%)
CMYK	cmyk(81%, 54.9%, 0%, 44.3%)
CIE-LAB	lab(29.04, 17.11, -46.97)
CIE-LCH	lch(29.04, 49.99, 290.01°)
OKLab	oklab(39.42% -0.0173 -0.1354)
OKLCH	oklch(39.42% 0.137 262.7)
XYZ	xyz(7.1661, 5.8520, 26.3378)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B408E #8E691B

analogous

#1B798E #1B408E #301B8E

triadic

#1B408E #8E1B40 #408E1B

tetradic

#1B408E #8E1B79 #8E691B #1B8E30

square

#1B408E #8E1B79 #8E691B #1B8E30

split-complementary

#1B408E #8E301B #798E1B

monochromatic

#071227 #11295B #1B408E #2557C1 #4777DC

Accessibility & contrast

On white

9.67

#1B408E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#1B408E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B408E

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B408E	#FFFFFF	#000000	##FFFFFF
##1B408E	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#014A91

Deuteranopia (green-blind)

#003F8C

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1b408e;
/* rgb */ color: rgb(27, 64, 142);
/* oklch */ color: oklch(39.4% 0.137 262.7);

Tailwind

colors: {
  custom: {
    50: '#6b74b0',
    500: '#1b408e',
    950: '#000000',
  },
}

SCSS

$custom: #1b408e;
$custom-light: #6b74b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b408e",
  "rgb": {
    "r": 27,
    "g": 64,
    "b": 142
  },
  "hsl": {
    "h": 220.696,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.39421,
    "c": 0.13652,
    "h": 262.7
  },
  "luminance": 0.05853
}

Semantic roles & 50–950 ramp

primary

#1B408E

secondary

#BE9847

accent

#B33DEB

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1B408E

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

Preview Lab → · Contrast checker → · Palette generator →