#1B4A95#1B4A95

#1B4A95 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.2% C 0.134 H 259.6°. Best body text is #FFFFFF at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#1B4A95
RGB	rgb(27, 74, 149)
HSL	hsl(217, 69%, 35%)
HSV	hsv(217, 82%, 58%)
CMYK	cmyk(81.9%, 50.3%, 0%, 41.6%)
CIE-LAB	lab(32.48, 13.08, -45.68)
CIE-LCH	lch(32.48, 47.52, 285.97°)
OKLab	oklab(42.21% -0.0241 -0.1314)
OKLCH	oklch(42.21% 0.134 259.6)
XYZ	xyz(8.3236, 7.2995, 29.3982)
Luminance	0.0730 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4A95 #95661B

analogous

#1B8795 #1B4A95 #291B95

triadic

#1B4A95 #951B4A #4A951B

tetradic

#1B4A95 #951B87 #95661B #1B9529

square

#1B4A95 #951B87 #95661B #1B9529

split-complementary

#1B4A95 #95291B #87951B

monochromatic

#08172D #123061 #1B4A95 #2464C9 #4C84DF

Accessibility & contrast

On white

8.54

#1B4A95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#1B4A95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4A95

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4A95	#FFFFFF	#000000	##FFFFFF
##1B4A95	1.00	8.54	2.46	8.54
#FFFFFF	8.54	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D5298

Deuteranopia (green-blind)

#004794

Tritanopia (blue-blind)

#005C68

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b4a95;
/* rgb */ color: rgb(27, 74, 149);
/* oklch */ color: oklch(42.2% 0.134 259.6);

Tailwind

colors: {
  custom: {
    50: '#6c7bb5',
    500: '#1b4a95',
    950: '#000000',
  },
}

SCSS

$custom: #1b4a95;
$custom-light: #6c7bb5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4a95",
  "rgb": {
    "r": 27,
    "g": 74,
    "b": 149
  },
  "hsl": {
    "h": 216.885,
    "s": 69.318,
    "l": 34.51
  },
  "oklch": {
    "l": 0.42211,
    "c": 0.13363,
    "h": 259.6
  },
  "luminance": 0.073
}

Semantic roles & 50–950 ramp

primary

#1B4A95

secondary

#C1934B

accent

#A83CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4A95

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

Preview Lab → · Contrast checker → · Palette generator →