#1B294F#1B294F

#1B294F is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.1% C 0.072 H 266.7°. Best body text is #FFFFFF at 14.22:1 contrast (WCAG AA passes).

Color values

HEX	#1B294F
RGB	rgb(27, 41, 79)
HSL	hsl(224, 49%, 21%)
HSV	hsv(224, 66%, 31%)
CMYK	cmyk(65.8%, 48.1%, 0%, 69%)
CIE-LAB	lab(17.38, 7.83, -25.21)
CIE-LCH	lch(17.38, 26.40, 287.27°)
OKLab	oklab(29.05% -0.0041 -0.0718)
OKLCH	oklch(29.05% 0.072 266.7)
XYZ	xyz(2.6557, 2.3832, 7.7157)
Luminance	0.0238 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B294F #4F411B

analogous

#1B434F #1B294F #271B4F

triadic

#1B294F #4F1B29 #294F1B

tetradic

#1B294F #4F1B43 #4F411B #1B4F27

square

#1B294F #4F1B43 #4F411B #1B4F27

split-complementary

#1B294F #4F271B #434F1B

monochromatic

#080C17 #0B1121 #1B294F #2B417D #3A58AA

Accessibility & contrast

On white

14.22

#1B294F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#1B294F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B294F

14.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B294F	#FFFFFF	#000000	##FFFFFF
##1B294F	1.00	14.22	1.48	14.22
#FFFFFF	14.22	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#182D50

Deuteranopia (green-blind)

#10284E

Tritanopia (blue-blind)

#003238

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b294f;
/* rgb */ color: rgb(27, 41, 79);
/* oklch */ color: oklch(29.1% 0.072 266.7);

Tailwind

colors: {
  custom: {
    50: '#5d6280',
    500: '#1b294f',
    950: '#000000',
  },
}

SCSS

$custom: #1b294f;
$custom-light: #5d6280;
$custom-dark: #000000;

JSON

{
  "hex": "#1b294f",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 79
  },
  "hsl": {
    "h": 223.846,
    "s": 49.057,
    "l": 20.784
  },
  "oklch": {
    "l": 0.29052,
    "c": 0.07195,
    "h": 266.7
  },
  "luminance": 0.02383
}

Semantic roles & 50–950 ramp

primary

#1B294F

secondary

#857341

accent

#B44FD9

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #1B294F

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

Preview Lab → · Contrast checker → · Palette generator →