#1B207B#1B207B

#1B207B is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.3% C 0.150 H 271.5°. Best body text is #FFFFFF at 13.64:1 contrast (WCAG AA passes).

Color values

HEX	#1B207B
RGB	rgb(27, 32, 123)
HSL	hsl(237, 64%, 29%)
HSV	hsv(237, 78%, 48%)
CMYK	cmyk(78%, 74%, 0%, 51.8%)
CIE-LAB	lab(18.78, 31.53, -51.83)
CIE-LCH	lch(18.78, 60.66, 301.32°)
OKLab	oklab(31.3% 0.0039 -0.15)
OKLCH	oklch(31.3% 0.15 271.5)
XYZ	xyz(4.5424, 2.6956, 19.0160)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B207B #7B761B

analogous

#1B507B #1B207B #461B7B

triadic

#1B207B #7B1B20 #207B1B

tetradic

#1B207B #7B1B50 #7B761B #1B7B46

square

#1B207B #7B1B50 #7B761B #1B7B46

split-complementary

#1B207B #7B461B #507B1B

monochromatic

#060719 #101349 #1B207B #262DAD #3C44D4

Accessibility & contrast

On white

13.64

#1B207B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1B207B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B207B

13.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B207B	#FFFFFF	#000000	##FFFFFF
##1B207B	1.00	13.64	1.54	13.64
#FFFFFF	13.64	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327E

Deuteranopia (green-blind)

#002979

Tritanopia (blue-blind)

#003A4B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1b207b;
/* rgb */ color: rgb(27, 32, 123);
/* oklch */ color: oklch(31.3% 0.150 271.5);

Tailwind

colors: {
  custom: {
    50: '#695ca2',
    500: '#1b207b',
    950: '#000000',
  },
}

SCSS

$custom: #1b207b;
$custom-light: #695ca2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b207b",
  "rgb": {
    "r": 27,
    "g": 32,
    "b": 123
  },
  "hsl": {
    "h": 236.875,
    "s": 64,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31296,
    "c": 0.15005,
    "h": 271.5
  },
  "luminance": 0.02696
}

Semantic roles & 50–950 ramp

primary

#1B207B

secondary

#AFA943

accent

#DE41E7

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1B207B

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

Preview Lab → · Contrast checker → · Palette generator →