#1B4D94#1B4D94

#1B4D94 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 42.8% C 0.128 H 258.0°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#1B4D94
RGB	rgb(27, 77, 148)
HSL	hsl(215, 69%, 34%)
HSV	hsv(215, 82%, 58%)
CMYK	cmyk(81.8%, 48%, 0%, 42%)
CIE-LAB	lab(33.30, 10.64, -43.75)
CIE-LCH	lch(33.30, 45.02, 283.67°)
OKLab	oklab(42.82% -0.0267 -0.1257)
OKLCH	oklch(42.82% 0.128 258)
XYZ	xyz(8.4492, 7.6779, 29.0479)
Luminance	0.0768 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4D94 #94621B

analogous

#1B8A94 #1B4D94 #261B94

triadic

#1B4D94 #941B4D #4D941B

tetradic

#1B4D94 #941B8A #94621B #1B9426

square

#1B4D94 #941B8A #94621B #1B9426

split-complementary

#1B4D94 #94261B #8A941B

monochromatic

#08172C #123260 #1B4D94 #2468C8 #4B88DE

Accessibility & contrast

On white

8.28

#1B4D94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1B4D94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4D94

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4D94	#FFFFFF	#000000	##FFFFFF
##1B4D94	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#265497

Deuteranopia (green-blind)

#014993

Tritanopia (blue-blind)

#005E69

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b4d94;
/* rgb */ color: rgb(27, 77, 148);
/* oklch */ color: oklch(42.8% 0.128 258.0);

Tailwind

colors: {
  custom: {
    50: '#6c7eb4',
    500: '#1b4d94',
    950: '#000000',
  },
}

SCSS

$custom: #1b4d94;
$custom-light: #6c7eb4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4d94",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 148
  },
  "hsl": {
    "h": 215.207,
    "s": 69.143,
    "l": 34.314
  },
  "oklch": {
    "l": 0.42822,
    "c": 0.12848,
    "h": 258
  },
  "luminance": 0.07679
}

Semantic roles & 50–950 ramp

primary

#1B4D94

secondary

#C0904B

accent

#A33CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1B4D94

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

Preview Lab → · Contrast checker → · Palette generator →