#1B127D#1B127D

#1B127D is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.6% C 0.166 H 273.2°. Best body text is #FFFFFF at 14.69:1 contrast (WCAG AA passes).

Color values

HEX	#1B127D
RGB	rgb(27, 18, 125)
HSL	hsl(245, 75%, 28%)
HSV	hsv(245, 86%, 49%)
CMYK	cmyk(78.4%, 85.6%, 0%, 51%)
CIE-LAB	lab(16.23, 40.16, -57.31)
CIE-LCH	lch(16.23, 69.99, 305.02°)
OKLab	oklab(29.57% 0.0092 -0.1658)
OKLCH	oklch(29.57% 0.166 273.2)
XYZ	xyz(4.3687, 2.1458, 19.5820)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B127D #747D12

analogous

#123E7D #1B127D #50127D

triadic

#1B127D #7D1B12 #127D1B

tetradic

#1B127D #7D123E #747D12 #127D50

square

#1B127D #7D123E #747D12 #127D50

split-complementary

#1B127D #7D5012 #3E7D12

monochromatic

#06041B #0F0A48 #1B127D #271AB2 #3929E0

Accessibility & contrast

On white

14.69

#1B127D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1B127D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B127D

14.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B127D	#FFFFFF	#000000	##FFFFFF
##1B127D	1.00	14.69	1.43	14.69
#FFFFFF	14.69	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D80

Deuteranopia (green-blind)

#00237B

Tritanopia (blue-blind)

#003549

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1b127d;
/* rgb */ color: rgb(27, 18, 125);
/* oklch */ color: oklch(29.6% 0.166 273.2);

Tailwind

colors: {
  custom: {
    50: '#6b54a4',
    500: '#1b127d',
    950: '#000000',
  },
}

SCSS

$custom: #1b127d;
$custom-light: #6b54a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b127d",
  "rgb": {
    "r": 27,
    "g": 18,
    "b": 125
  },
  "hsl": {
    "h": 245.047,
    "s": 74.825,
    "l": 28.039
  },
  "oklch": {
    "l": 0.29571,
    "c": 0.16603,
    "h": 273.2
  },
  "luminance": 0.02146
}

Semantic roles & 50–950 ramp

primary

#1B127D

secondary

#A9B338

accent

#F136E2

background

#F7F5FA

surface

#EDE8F4

border

#C8C4CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1B127D

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

Preview Lab → · Contrast checker → · Palette generator →