#1B294B#1B294B

#1B294B is a dark, moderate blue. Relative luminance 0.023; OKLCH L 28.8% C 0.065 H 265.6°. Best body text is #FFFFFF at 14.33:1 contrast (WCAG AA passes).

Color values

HEX	#1B294B
RGB	rgb(27, 41, 75)
HSL	hsl(223, 47%, 20%)
HSV	hsv(223, 64%, 29%)
CMYK	cmyk(64%, 45.3%, 0%, 70.6%)
CIE-LAB	lab(17.12, 6.24, -22.92)
CIE-LCH	lch(17.12, 23.75, 285.24°)
OKLab	oklab(28.76% -0.005 -0.0651)
OKLCH	oklch(28.76% 0.065 265.6)
XYZ	xyz(2.5145, 2.3267, 6.9718)
Luminance	0.0233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B294B #4B3D1B

analogous

#1B414B #1B294B #251B4B

triadic

#1B294B #4B1B29 #294B1B

tetradic

#1B294B #4B1B41 #4B3D1B #1B4B25

square

#1B294B #4B1B41 #4B3D1B #1B4B25

split-complementary

#1B294B #4B251B #414B1B

monochromatic

#080C17 #0B101E #1B294B #2B4278 #3B5AA5

Accessibility & contrast

On white

14.33

#1B294B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#1B294B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B294B

14.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B294B	#FFFFFF	#000000	##FFFFFF
##1B294B	1.00	14.33	1.47	14.33
#FFFFFF	14.33	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A2C4C

Deuteranopia (green-blind)

#14284A

Tritanopia (blue-blind)

#003136

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1b294b;
/* rgb */ color: rgb(27, 41, 75);
/* oklch */ color: oklch(28.8% 0.065 265.6);

Tailwind

colors: {
  custom: {
    50: '#5c627d',
    500: '#1b294b',
    950: '#000000',
  },
}

SCSS

$custom: #1b294b;
$custom-light: #5c627d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b294b",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 75
  },
  "hsl": {
    "h": 222.5,
    "s": 47.059,
    "l": 20
  },
  "oklch": {
    "l": 0.28761,
    "c": 0.0653,
    "h": 265.6
  },
  "luminance": 0.02327
}

Semantic roles & 50–950 ramp

primary

#1B294B

secondary

#816E41

accent

#B051D7

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#040509

muted

#79797B

Preview Lab

Preview with #1B294B

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

Preview Lab → · Contrast checker → · Palette generator →