#1B2A7D#1B2A7D

#1B2A7D is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.3% C 0.141 H 269.1°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#1B2A7D
RGB	rgb(27, 42, 125)
HSL	hsl(231, 64%, 30%)
HSV	hsv(231, 78%, 49%)
CMYK	cmyk(78.4%, 66.4%, 0%, 51%)
CIE-LAB	lab(21.47, 25.61, -48.69)
CIE-LCH	lch(21.47, 55.01, 297.75°)
OKLab	oklab(33.31% -0.0023 -0.1408)
OKLCH	oklch(33.31% 0.141 269.1)
XYZ	xyz(4.9804, 3.3691, 19.7859)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2A7D #7D6E1B

analogous

#1B5B7D #1B2A7D #3D1B7D

triadic

#1B2A7D #7D1B2A #2A7D1B

tetradic

#1B2A7D #7D1B5B #7D6E1B #1B7D3D

square

#1B2A7D #7D1B5B #7D6E1B #1B7D3D

split-complementary

#1B2A7D #7D3D1B #5B7D1B

monochromatic

#050819 #10194B #1B2A7D #263BAF #3D55D5

Accessibility & contrast

On white

12.54

#1B2A7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1B2A7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2A7D

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2A7D	#FFFFFF	#000000	##FFFFFF
##1B2A7D	1.00	12.54	1.67	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003880

Deuteranopia (green-blind)

#002F7B

Tritanopia (blue-blind)

#00404F

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1b2a7d;
/* rgb */ color: rgb(27, 42, 125);
/* oklch */ color: oklch(33.3% 0.141 269.1);

Tailwind

colors: {
  custom: {
    50: '#6863a3',
    500: '#1b2a7d',
    950: '#000000',
  },
}

SCSS

$custom: #1b2a7d;
$custom-light: #6863a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2a7d",
  "rgb": {
    "r": 27,
    "g": 42,
    "b": 125
  },
  "hsl": {
    "h": 230.816,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.33307,
    "c": 0.14082,
    "h": 269.1
  },
  "luminance": 0.0337
}

Semantic roles & 50–950 ramp

primary

#1B2A7D

secondary

#B1A043

accent

#CE40E7

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1B2A7D

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

Preview Lab → · Contrast checker → · Palette generator →