#1B207A#1B207A

#1B207A is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.2% C 0.149 H 271.5°. Best body text is #FFFFFF at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#1B207A
RGB	rgb(27, 32, 122)
HSL	hsl(237, 64%, 29%)
HSV	hsv(237, 78%, 48%)
CMYK	cmyk(77.9%, 73.8%, 0%, 52.2%)
CIE-LAB	lab(18.67, 31.16, -51.36)
CIE-LCH	lch(18.67, 60.08, 301.24°)
OKLab	oklab(31.19% 0.004 -0.1487)
OKLCH	oklch(31.19% 0.149 271.5)
XYZ	xyz(4.4802, 2.6707, 18.6880)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B207A #7A751B

analogous

#1B507A #1B207A #461B7A

triadic

#1B207A #7A1B20 #207A1B

tetradic

#1B207A #7A1B50 #7A751B #1B7A46

square

#1B207A #7A1B50 #7A751B #1B7A46

split-complementary

#1B207A #7A461B #507A1B

monochromatic

#060719 #101348 #1B207A #262DAC #3C44D4

Accessibility & contrast

On white

13.69

#1B207A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1B207A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B207A

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B207A	#FFFFFF	#000000	##FFFFFF
##1B207A	1.00	13.69	1.53	13.69
#FFFFFF	13.69	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327D

Deuteranopia (green-blind)

#002978

Tritanopia (blue-blind)

#00394A

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1b207a;
/* rgb */ color: rgb(27, 32, 122);
/* oklch */ color: oklch(31.2% 0.149 271.5);

Tailwind

colors: {
  custom: {
    50: '#695ca1',
    500: '#1b207a',
    950: '#000000',
  },
}

SCSS

$custom: #1b207a;
$custom-light: #695ca1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b207a",
  "rgb": {
    "r": 27,
    "g": 32,
    "b": 122
  },
  "hsl": {
    "h": 236.842,
    "s": 63.758,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31187,
    "c": 0.14871,
    "h": 271.5
  },
  "luminance": 0.02671
}

Semantic roles & 50–950 ramp

primary

#1B207A

secondary

#AEA843

accent

#DE41E7

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1B207A

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

Preview Lab → · Contrast checker → · Palette generator →