#1B207F#1B207F

#1B207F is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.7% C 0.155 H 271.2°. Best body text is #FFFFFF at 13.46:1 contrast (WCAG AA passes).

Color values

HEX	#1B207F
RGB	rgb(27, 32, 127)
HSL	hsl(237, 65%, 30%)
HSV	hsv(237, 79%, 50%)
CMYK	cmyk(78.7%, 74.8%, 0%, 50.2%)
CIE-LAB	lab(19.22, 33.00, -53.65)
CIE-LCH	lch(19.22, 62.99, 301.59°)
OKLab	oklab(31.74% 0.0033 -0.1553)
OKLCH	oklch(31.74% 0.155 271.2)
XYZ	xyz(4.7980, 2.7978, 20.3617)
Luminance	0.0280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B207F #7F7A1B

analogous

#1B527F #1B207F #481B7F

triadic

#1B207F #7F1B20 #207F1B

tetradic

#1B207F #7F1B52 #7F7A1B #1B7F48

square

#1B207F #7F1B52 #7F7A1B #1B7F48

split-complementary

#1B207F #7F481B #527F1B

monochromatic

#06071A #10134D #1B207F #262DB1 #3E46D6

Accessibility & contrast

On white

13.46

#1B207F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1B207F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B207F

13.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B207F	#FFFFFF	#000000	##FFFFFF
##1B207F	1.00	13.46	1.56	13.46
#FFFFFF	13.46	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003382

Deuteranopia (green-blind)

#002A7D

Tritanopia (blue-blind)

#003B4D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1b207f;
/* rgb */ color: rgb(27, 32, 127);
/* oklch */ color: oklch(31.7% 0.155 271.2);

Tailwind

colors: {
  custom: {
    50: '#6a5ca5',
    500: '#1b207f',
    950: '#000000',
  },
}

SCSS

$custom: #1b207f;
$custom-light: #6a5ca5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b207f",
  "rgb": {
    "r": 27,
    "g": 32,
    "b": 127
  },
  "hsl": {
    "h": 237,
    "s": 64.935,
    "l": 30.196
  },
  "oklch": {
    "l": 0.31737,
    "c": 0.15536,
    "h": 271.2
  },
  "luminance": 0.02798
}

Semantic roles & 50–950 ramp

primary

#1B207F

secondary

#B3AD43

accent

#E040E8

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #1B207F

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

Preview Lab → · Contrast checker → · Palette generator →