#1B499E#1B499E

#1B499E is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.7% C 0.147 H 261.3°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#1B499E
RGB	rgb(27, 73, 158)
HSL	hsl(219, 71%, 36%)
HSV	hsv(219, 83%, 62%)
CMYK	cmyk(82.9%, 53.8%, 0%, 38%)
CIE-LAB	lab(32.84, 17.39, -50.54)
CIE-LCH	lch(32.84, 53.45, 288.99°)
OKLab	oklab(42.7% -0.0222 -0.1458)
OKLCH	oklch(42.7% 0.147 261.3)
XYZ	xyz(9.0039, 7.4656, 33.3076)
Luminance	0.0747 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B499E #9E701B

analogous

#1B8B9E #1B499E #2E1B9E

triadic

#1B499E #9E1B49 #499E1B

tetradic

#1B499E #9E1B8B #9E701B #1B9E2E

square

#1B499E #9E1B8B #9E701B #1B9E2E

split-complementary

#1B499E #9E2E1B #8B9E1B

monochromatic

#091935 #12316A #1B499E #2461D2 #5284E1

Accessibility & contrast

On white

8.42

#1B499E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1B499E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B499E

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B499E	#FFFFFF	#000000	##FFFFFF
##1B499E	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0653A1

Deuteranopia (green-blind)

#00489C

Tritanopia (blue-blind)

#005E6C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b499e;
/* rgb */ color: rgb(27, 73, 158);
/* oklch */ color: oklch(42.7% 0.147 261.3);

Tailwind

colors: {
  custom: {
    50: '#6f7bbb',
    500: '#1b499e',
    950: '#000000',
  },
}

SCSS

$custom: #1b499e;
$custom-light: #6f7bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b499e",
  "rgb": {
    "r": 27,
    "g": 73,
    "b": 158
  },
  "hsl": {
    "h": 218.931,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.42699,
    "c": 0.14744,
    "h": 261.3
  },
  "luminance": 0.07467
}

Semantic roles & 50–950 ramp

primary

#1B499E

secondary

#C49C51

accent

#AF3AEE

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1B499E

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

Preview Lab → · Contrast checker → · Palette generator →