#1B293E#1B293E

#1B293E is a dark, muted blue. Relative luminance 0.022; OKLCH L 27.9% C 0.044 H 258.3°. Best body text is #FFFFFF at 14.65:1 contrast (WCAG AA passes).

Color values

HEX	#1B293E
RGB	rgb(27, 41, 62)
HSL	hsl(216, 39%, 17%)
HSV	hsv(216, 56%, 24%)
CMYK	cmyk(56.5%, 33.9%, 0%, 75.7%)
CIE-LAB	lab(16.34, 1.23, -15.21)
CIE-LCH	lch(16.34, 15.26, 274.62°)
OKLab	oklab(27.9% -0.0088 -0.0426)
OKLCH	oklch(27.9% 0.044 258.3)
XYZ	xyz(2.1141, 2.1665, 4.8633)
Luminance	0.0217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B293E #3E301B

analogous

#1B3B3E #1B293E #1E1B3E

triadic

#1B293E #3E1B29 #293E1B

tetradic

#1B293E #3E1B3B #3E301B #1B3E1E

square

#1B293E #3E1B3B #3E301B #1B3E1E

split-complementary

#1B293E #3E1E1B #3B3E1B

monochromatic

#090E15 #090E15 #1B293E #2E4569 #406193

Accessibility & contrast

On white

14.65

#1B293E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1B293E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B293E

14.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B293E	#FFFFFF	#000000	##FFFFFF
##1B293E	1.00	14.65	1.43	14.65
#FFFFFF	14.65	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212A3F

Deuteranopia (green-blind)

#1D273E

Tritanopia (blue-blind)

#0B2E30

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1b293e;
/* rgb */ color: rgb(27, 41, 62);
/* oklch */ color: oklch(27.9% 0.044 258.3);

Tailwind

colors: {
  custom: {
    50: '#5a6273',
    500: '#1b293e',
    950: '#000000',
  },
}

SCSS

$custom: #1b293e;
$custom-light: #5a6273;
$custom-dark: #000000;

JSON

{
  "hex": "#1b293e",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 62
  },
  "hsl": {
    "h": 216,
    "s": 39.326,
    "l": 17.451
  },
  "oklch": {
    "l": 0.27903,
    "c": 0.04356,
    "h": 258.3
  },
  "luminance": 0.02167
}

Semantic roles & 50–950 ramp

primary

#1B293E

secondary

#735F42

accent

#A059CF

background

#F5F5F7

surface

#E9EAED

border

#C5C6C8

text

#040508

muted

#79797B

Preview Lab

Preview with #1B293E

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

Preview Lab → · Contrast checker → · Palette generator →