#1B2E8D#1B2E8D

#1B2E8D is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.7% C 0.158 H 268.0°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E8D
RGB	rgb(27, 46, 141)
HSL	hsl(230, 68%, 33%)
HSV	hsv(230, 81%, 55%)
CMYK	cmyk(80.9%, 67.4%, 0%, 44.7%)
CIE-LAB	lab(24.03, 29.11, -54.52)
CIE-LCH	lch(24.03, 61.80, 298.10°)
OKLab	oklab(35.66% -0.0055 -0.1578)
OKLCH	oklch(35.66% 0.158 268)
XYZ	xyz(6.2350, 4.1094, 25.6587)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E8D #8D7A1B

analogous

#1B678D #1B2E8D #411B8D

triadic

#1B2E8D #8D1B2E #2E8D1B

tetradic

#1B2E8D #8D1B67 #8D7A1B #1B8D41

square

#1B2E8D #8D1B67 #8D7A1B #1B8D41

split-complementary

#1B2E8D #8D411B #678D1B

monochromatic

#070C26 #111D5A #1B2E8D #253FC0 #4760DC

Accessibility & contrast

On white

11.53

#1B2E8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1B2E8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E8D

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E8D	#FFFFFF	#000000	##FFFFFF
##1B2E8D	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F90

Deuteranopia (green-blind)

#00348B

Tritanopia (blue-blind)

#004759

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1b2e8d;
/* rgb */ color: rgb(27, 46, 141);
/* oklch */ color: oklch(35.7% 0.158 268.0);

Tailwind

colors: {
  custom: {
    50: '#6c66af',
    500: '#1b2e8d',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e8d;
$custom-light: #6c66af;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e8d",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 141
  },
  "hsl": {
    "h": 230,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.35658,
    "c": 0.15793,
    "h": 268
  },
  "luminance": 0.0411
}

Semantic roles & 50–950 ramp

primary

#1B2E8D

secondary

#BDAA46

accent

#CE3DEB

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1B2E8D

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

Preview Lab → · Contrast checker → · Palette generator →