#1B4197#1B4197

#1B4197 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.4% C 0.148 H 263.3°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#1B4197
RGB	rgb(27, 65, 151)
HSL	hsl(222, 70%, 35%)
HSV	hsv(222, 82%, 59%)
CMYK	cmyk(82.1%, 57%, 0%, 40.8%)
CIE-LAB	lab(30.03, 20.05, -50.87)
CIE-LCH	lch(30.03, 54.68, 291.51°)
OKLab	oklab(40.39% -0.0172 -0.1469)
OKLCH	oklch(40.39% 0.148 263.3)
XYZ	xyz(7.9262, 6.2470, 30.0602)
Luminance	0.0625 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4197 #97711B

analogous

#1B7F97 #1B4197 #331B97

triadic

#1B4197 #971B41 #41971B

tetradic

#1B4197 #971B7F #97711B #1B9733

square

#1B4197 #971B7F #97711B #1B9733

split-complementary

#1B4197 #97331B #7F971B

monochromatic

#08142F #122B63 #1B4197 #2457CB #4D7ADF

Accessibility & contrast

On white

9.33

#1B4197 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1B4197 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4197

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4197	#FFFFFF	#000000	##FFFFFF
##1B4197	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9A

Deuteranopia (green-blind)

#004195

Tritanopia (blue-blind)

#005665

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b4197;
/* rgb */ color: rgb(27, 65, 151);
/* oklch */ color: oklch(40.4% 0.148 263.3);

Tailwind

colors: {
  custom: {
    50: '#6d75b6',
    500: '#1b4197',
    950: '#000000',
  },
}

SCSS

$custom: #1b4197;
$custom-light: #6d75b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4197",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 151
  },
  "hsl": {
    "h": 221.613,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.40393,
    "c": 0.14789,
    "h": 263.3
  },
  "luminance": 0.06248
}

Semantic roles & 50–950 ramp

primary

#1B4197

secondary

#C19E4C

accent

#B63BEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1B4197

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

Preview Lab → · Contrast checker → · Palette generator →