#1B2D85#1B2D85

#1B2D85 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.7% C 0.148 H 268.3°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D85
RGB	rgb(27, 45, 133)
HSL	hsl(230, 66%, 31%)
HSV	hsv(230, 80%, 52%)
CMYK	cmyk(79.7%, 66.2%, 0%, 47.8%)
CIE-LAB	lab(23.01, 26.68, -51.20)
CIE-LCH	lch(23.01, 57.74, 297.53°)
OKLab	oklab(34.67% -0.0045 -0.1481)
OKLCH	oklch(34.67% 0.148 268.3)
XYZ	xyz(5.6226, 3.8026, 22.6234)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D85 #85731B

analogous

#1B6285 #1B2D85 #3E1B85

triadic

#1B2D85 #851B2D #2D851B

tetradic

#1B2D85 #851B62 #85731B #1B853E

square

#1B2D85 #851B62 #85731B #1B853E

split-complementary

#1B2D85 #853E1B #62851B

monochromatic

#060B1F #111C52 #1B2D85 #253EB8 #425BD9

Accessibility & contrast

On white

11.93

#1B2D85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1B2D85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D85

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D85	#FFFFFF	#000000	##FFFFFF
##1B2D85	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C88

Deuteranopia (green-blind)

#003283

Tritanopia (blue-blind)

#004454

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1b2d85;
/* rgb */ color: rgb(27, 45, 133);
/* oklch */ color: oklch(34.7% 0.148 268.3);

Tailwind

colors: {
  custom: {
    50: '#6a65a9',
    500: '#1b2d85',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d85;
$custom-light: #6a65a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d85",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 133
  },
  "hsl": {
    "h": 229.811,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.34674,
    "c": 0.14821,
    "h": 268.3
  },
  "luminance": 0.03803
}

Semantic roles & 50–950 ramp

primary

#1B2D85

secondary

#B8A444

accent

#CC3FE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080510

muted

#7A7A7F

Preview Lab

Preview with #1B2D85

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

Preview Lab → · Contrast checker → · Palette generator →