#1B4D93#1B4D93

#1B4D93 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 42.7% C 0.127 H 257.8°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#1B4D93
RGB	rgb(27, 77, 147)
HSL	hsl(215, 69%, 34%)
HSV	hsv(215, 82%, 58%)
CMYK	cmyk(81.6%, 47.6%, 0%, 42.4%)
CIE-LAB	lab(33.24, 10.23, -43.25)
CIE-LCH	lch(33.24, 44.44, 283.31°)
OKLab	oklab(42.75% -0.0269 -0.1242)
OKLCH	oklch(42.75% 0.127 257.8)
XYZ	xyz(8.3704, 7.6463, 28.6328)
Luminance	0.0765 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4D93 #93611B

analogous

#1B8993 #1B4D93 #251B93

triadic

#1B4D93 #931B4D #4D931B

tetradic

#1B4D93 #931B89 #93611B #1B9325

square

#1B4D93 #931B89 #93611B #1B9325

split-complementary

#1B4D93 #93251B #89931B

monochromatic

#08172C #12325F #1B4D93 #2468C7 #4B88DE

Accessibility & contrast

On white

8.30

#1B4D93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1B4D93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4D93

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4D93	#FFFFFF	#000000	##FFFFFF
##1B4D93	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#275496

Deuteranopia (green-blind)

#054992

Tritanopia (blue-blind)

#005E69

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b4d93;
/* rgb */ color: rgb(27, 77, 147);
/* oklch */ color: oklch(42.7% 0.127 257.8);

Tailwind

colors: {
  custom: {
    50: '#6c7eb3',
    500: '#1b4d93',
    950: '#000000',
  },
}

SCSS

$custom: #1b4d93;
$custom-light: #6c7eb3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4d93",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 147
  },
  "hsl": {
    "h": 215,
    "s": 68.966,
    "l": 34.118
  },
  "oklch": {
    "l": 0.42749,
    "c": 0.12708,
    "h": 257.8
  },
  "luminance": 0.07647
}

Semantic roles & 50–950 ramp

primary

#1B4D93

secondary

#C08F4A

accent

#A33CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4D93

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

Preview Lab → · Contrast checker → · Palette generator →