#1B459E#1B459E

#1B459E is a dark, vivid blue. Relative luminance 0.070; OKLCH L 41.8% C 0.152 H 262.7°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#1B459E
RGB	rgb(27, 69, 158)
HSL	hsl(221, 71%, 36%)
HSV	hsv(221, 83%, 62%)
CMYK	cmyk(82.9%, 56.3%, 0%, 38%)
CIE-LAB	lab(31.71, 20.12, -52.39)
CIE-LCH	lch(31.71, 56.12, 291.01°)
OKLab	oklab(41.84% -0.0194 -0.1513)
OKLCH	oklch(41.84% 0.153 262.7)
XYZ	xyz(8.7495, 6.9568, 33.2228)
Luminance	0.0696 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B459E #9E741B

analogous

#1B879E #1B459E #321B9E

triadic

#1B459E #9E1B45 #459E1B

tetradic

#1B459E #9E1B87 #9E741B #1B9E32

square

#1B459E #9E1B87 #9E741B #1B9E32

split-complementary

#1B459E #9E321B #879E1B

monochromatic

#091735 #122E6A #1B459E #245CD2 #5280E1

Accessibility & contrast

On white

8.78

#1B459E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1B459E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B459E

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B459E	#FFFFFF	#000000	##FFFFFF
##1B459E	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A1

Deuteranopia (green-blind)

#00459C

Tritanopia (blue-blind)

#005B6A

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b459e;
/* rgb */ color: rgb(27, 69, 158);
/* oklch */ color: oklch(41.8% 0.152 262.7);

Tailwind

colors: {
  custom: {
    50: '#6f78bb',
    500: '#1b459e',
    950: '#000000',
  },
}

SCSS

$custom: #1b459e;
$custom-light: #6f78bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b459e",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 158
  },
  "hsl": {
    "h": 220.763,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.41837,
    "c": 0.1525,
    "h": 262.7
  },
  "luminance": 0.06958
}

Semantic roles & 50–950 ramp

primary

#1B459E

secondary

#C49F51

accent

#B43AEE

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1B459E

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

Preview Lab → · Contrast checker → · Palette generator →