#1B127E#1B127E

#1B127E is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.7% C 0.167 H 273.1°. Best body text is #FFFFFF at 14.64:1 contrast (WCAG AA passes).

Color values

HEX	#1B127E
RGB	rgb(27, 18, 126)
HSL	hsl(245, 75%, 28%)
HSV	hsv(245, 86%, 49%)
CMYK	cmyk(78.6%, 85.7%, 0%, 50.6%)
CIE-LAB	lab(16.36, 40.48, -57.74)
CIE-LCH	lch(16.36, 70.52, 305.04°)
OKLab	oklab(29.7% 0.0089 -0.167)
OKLCH	oklch(29.7% 0.167 273.1)
XYZ	xyz(4.4329, 2.1715, 19.9201)
Luminance	0.0217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B127E #757E12

analogous

#123F7E #1B127E #51127E

triadic

#1B127E #7E1B12 #127E1B

tetradic

#1B127E #7E123F #757E12 #127E51

square

#1B127E #7E123F #757E12 #127E51

split-complementary

#1B127E #7E5112 #3F7E12

monochromatic

#06041B #100A48 #1B127E #261AB4 #392AE1

Accessibility & contrast

On white

14.64

#1B127E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1B127E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B127E

14.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B127E	#FFFFFF	#000000	##FFFFFF
##1B127E	1.00	14.64	1.43	14.64
#FFFFFF	14.64	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D81

Deuteranopia (green-blind)

#00237C

Tritanopia (blue-blind)

#00354A

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1b127e;
/* rgb */ color: rgb(27, 18, 126);
/* oklch */ color: oklch(29.7% 0.167 273.1);

Tailwind

colors: {
  custom: {
    50: '#6b54a5',
    500: '#1b127e',
    950: '#000000',
  },
}

SCSS

$custom: #1b127e;
$custom-light: #6b54a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b127e",
  "rgb": {
    "r": 27,
    "g": 18,
    "b": 126
  },
  "hsl": {
    "h": 245,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.29697,
    "c": 0.16725,
    "h": 273.1
  },
  "luminance": 0.02172
}

Semantic roles & 50–950 ramp

primary

#1B127E

secondary

#A9B438

accent

#F236E2

background

#F7F5FA

surface

#EDE8F4

border

#C8C4CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1B127E

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

Preview Lab → · Contrast checker → · Palette generator →