#1B2A4E#1B2A4E

#1B2A4E is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.2% C 0.069 H 265.3°. Best body text is #FFFFFF at 14.11:1 contrast (WCAG AA passes).

Color values

HEX	#1B2A4E
RGB	rgb(27, 42, 78)
HSL	hsl(222, 49%, 21%)
HSV	hsv(222, 65%, 31%)
CMYK	cmyk(65.4%, 46.2%, 0%, 69.4%)
CIE-LAB	lab(17.64, 6.70, -24.12)
CIE-LCH	lch(17.64, 25.03, 285.53°)
OKLab	oklab(29.23% -0.0056 -0.0686)
OKLCH	oklch(29.23% 0.069 265.3)
XYZ	xyz(2.6546, 2.4388, 7.5371)
Luminance	0.0244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2A4E #4E3F1B

analogous

#1B434E #1B2A4E #251B4E

triadic

#1B2A4E #4E1B2A #2A4E1B

tetradic

#1B2A4E #4E1B43 #4E3F1B #1B4E25

square

#1B2A4E #4E1B43 #4E3F1B #1B4E25

split-complementary

#1B2A4E #4E251B #434E1B

monochromatic

#080C17 #0B1221 #1B2A4E #2B427B #3A5BA9

Accessibility & contrast

On white

14.11

#1B2A4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#1B2A4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2A4E

14.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2A4E	#FFFFFF	#000000	##FFFFFF
##1B2A4E	1.00	14.11	1.49	14.11
#FFFFFF	14.11	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A2E4F

Deuteranopia (green-blind)

#13294D

Tritanopia (blue-blind)

#003238

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b2a4e;
/* rgb */ color: rgb(27, 42, 78);
/* oklch */ color: oklch(29.2% 0.069 265.3);

Tailwind

colors: {
  custom: {
    50: '#5d6380',
    500: '#1b2a4e',
    950: '#000000',
  },
}

SCSS

$custom: #1b2a4e;
$custom-light: #5d6380;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2a4e",
  "rgb": {
    "r": 27,
    "g": 42,
    "b": 78
  },
  "hsl": {
    "h": 222.353,
    "s": 48.571,
    "l": 20.588
  },
  "oklch": {
    "l": 0.29228,
    "c": 0.06886,
    "h": 265.3
  },
  "luminance": 0.02439
}

Semantic roles & 50–950 ramp

primary

#1B2A4E

secondary

#847041

accent

#B050D8

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #1B2A4E

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

Preview Lab → · Contrast checker → · Palette generator →