#1B49A1#1B49A1

#1B49A1 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 42.9% C 0.152 H 261.7°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#1B49A1
RGB	rgb(27, 73, 161)
HSL	hsl(219, 71%, 37%)
HSV	hsv(219, 83%, 63%)
CMYK	cmyk(83.2%, 54.7%, 0%, 36.9%)
CIE-LAB	lab(33.07, 18.60, -51.98)
CIE-LCH	lch(33.07, 55.21, 289.69°)
OKLab	oklab(42.94% -0.0219 -0.15)
OKLCH	oklch(42.94% 0.152 261.7)
XYZ	xyz(9.2652, 7.5702, 34.6842)
Luminance	0.0757 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B49A1 #A1731B

analogous

#1B8CA1 #1B49A1 #301BA1

triadic

#1B49A1 #A11B49 #49A11B

tetradic

#1B49A1 #A11B8C #A1731B #1BA130

square

#1B49A1 #A11B8C #A1731B #1BA130

split-complementary

#1B49A1 #A1301B #8CA11B

monochromatic

#091938 #12316D #1B49A1 #2461D5 #5485E2

Accessibility & contrast

On white

8.35

#1B49A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1B49A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B49A1

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B49A1	#FFFFFF	#000000	##FFFFFF
##1B49A1	1.00	8.35	2.51	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A4

Deuteranopia (green-blind)

#00489F

Tritanopia (blue-blind)

#005F6E

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b49a1;
/* rgb */ color: rgb(27, 73, 161);
/* oklch */ color: oklch(42.9% 0.152 261.7);

Tailwind

colors: {
  custom: {
    50: '#6f7bbd',
    500: '#1b49a1',
    950: '#000000',
  },
}

SCSS

$custom: #1b49a1;
$custom-light: #6f7bbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1b49a1",
  "rgb": {
    "r": 27,
    "g": 73,
    "b": 161
  },
  "hsl": {
    "h": 219.403,
    "s": 71.277,
    "l": 36.863
  },
  "oklch": {
    "l": 0.42943,
    "c": 0.15159,
    "h": 261.7
  },
  "luminance": 0.07571
}

Semantic roles & 50–950 ramp

primary

#1B49A1

secondary

#C59E52

accent

#B03AEE

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1B49A1

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

Preview Lab → · Contrast checker → · Palette generator →