#1B3295#1B3295

#1B3295 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.2% C 0.164 H 267.2°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#1B3295
RGB	rgb(27, 50, 149)
HSL	hsl(229, 69%, 35%)
HSV	hsv(229, 82%, 58%)
CMYK	cmyk(81.9%, 66.4%, 0%, 41.6%)
CIE-LAB	lab(25.81, 29.51, -56.53)
CIE-LCH	lch(25.81, 63.77, 297.56°)
OKLab	oklab(37.2% -0.008 -0.1637)
OKLCH	oklch(37.2% 0.164 267.2)
XYZ	xyz(7.0155, 4.6833, 28.9622)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3295 #957E1B

analogous

#1B6F95 #1B3295 #411B95

triadic

#1B3295 #951B32 #32951B

tetradic

#1B3295 #951B6F #957E1B #1B9541

square

#1B3295 #951B6F #957E1B #1B9541

split-complementary

#1B3295 #95411B #6F951B

monochromatic

#080F2D #122161 #1B3295 #2443C9 #4C68DF

Accessibility & contrast

On white

10.84

#1B3295 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1B3295 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3295

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3295	#FFFFFF	#000000	##FFFFFF
##1B3295	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004398

Deuteranopia (green-blind)

#003793

Tritanopia (blue-blind)

#004C5F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1b3295;
/* rgb */ color: rgb(27, 50, 149);
/* oklch */ color: oklch(37.2% 0.164 267.2);

Tailwind

colors: {
  custom: {
    50: '#6e69b5',
    500: '#1b3295',
    950: '#000000',
  },
}

SCSS

$custom: #1b3295;
$custom-light: #6e69b5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3295",
  "rgb": {
    "r": 27,
    "g": 50,
    "b": 149
  },
  "hsl": {
    "h": 228.689,
    "s": 69.318,
    "l": 34.51
  },
  "oklch": {
    "l": 0.37199,
    "c": 0.16389,
    "h": 267.2
  },
  "luminance": 0.04684
}

Semantic roles & 50–950 ramp

primary

#1B3295

secondary

#C1AB4B

accent

#CB3CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1B3295

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

Preview Lab → · Contrast checker → · Palette generator →