#1B459F#1B459F

#1B459F is a dark, vivid blue. Relative luminance 0.070; OKLCH L 41.9% C 0.154 H 262.8°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#1B459F
RGB	rgb(27, 69, 159)
HSL	hsl(221, 71%, 36%)
HSV	hsv(221, 83%, 62%)
CMYK	cmyk(83%, 56.6%, 0%, 37.6%)
CIE-LAB	lab(31.79, 20.52, -52.86)
CIE-LCH	lch(31.79, 56.71, 291.22°)
OKLab	oklab(41.92% -0.0193 -0.1527)
OKLCH	oklch(41.92% 0.154 262.8)
XYZ	xyz(8.8359, 6.9914, 33.6779)
Luminance	0.0699 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B459F #9F751B

analogous

#1B879F #1B459F #331B9F

triadic

#1B459F #9F1B45 #459F1B

tetradic

#1B459F #9F1B87 #9F751B #1B9F33

square

#1B459F #9F1B87 #9F751B #1B9F33

split-complementary

#1B459F #9F331B #879F1B

monochromatic

#091836 #122E6B #1B459F #245CD3 #5380E2

Accessibility & contrast

On white

8.76

#1B459F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#1B459F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B459F

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B459F	#FFFFFF	#000000	##FFFFFF
##1B459F	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A2

Deuteranopia (green-blind)

#00459D

Tritanopia (blue-blind)

#005B6B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b459f;
/* rgb */ color: rgb(27, 69, 159);
/* oklch */ color: oklch(41.9% 0.154 262.8);

Tailwind

colors: {
  custom: {
    50: '#6f78bc',
    500: '#1b459f',
    950: '#000000',
  },
}

SCSS

$custom: #1b459f;
$custom-light: #6f78bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1b459f",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 159
  },
  "hsl": {
    "h": 220.909,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.41922,
    "c": 0.15388,
    "h": 262.8
  },
  "luminance": 0.06992
}

Semantic roles & 50–950 ramp

primary

#1B459F

secondary

#C5A051

accent

#B53AEE

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1B459F

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

Preview Lab → · Contrast checker → · Palette generator →