#1B3E95#1B3E95

#1B3E95 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.6% C 0.149 H 264.1°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#1B3E95
RGB	rgb(27, 62, 149)
HSL	hsl(223, 69%, 35%)
HSV	hsv(223, 82%, 58%)
CMYK	cmyk(81.9%, 58.4%, 0%, 41.6%)
CIE-LAB	lab(29.02, 21.32, -51.28)
CIE-LCH	lch(29.02, 55.54, 292.57°)
OKLab	oklab(39.59% -0.0153 -0.1481)
OKLCH	oklch(39.59% 0.149 264.1)
XYZ	xyz(7.5975, 5.8473, 29.1562)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3E95 #95721B

analogous

#1B7B95 #1B3E95 #351B95

triadic

#1B3E95 #951B3E #3E951B

tetradic

#1B3E95 #951B7B #95721B #1B9535

square

#1B3E95 #951B7B #95721B #1B9535

split-complementary

#1B3E95 #95351B #7B951B

monochromatic

#08132D #122861 #1B3E95 #2454C9 #4C76DF

Accessibility & contrast

On white

9.68

#1B3E95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#1B3E95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3E95

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3E95	#FFFFFF	#000000	##FFFFFF
##1B3E95	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A98

Deuteranopia (green-blind)

#003F93

Tritanopia (blue-blind)

#005463

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1b3e95;
/* rgb */ color: rgb(27, 62, 149);
/* oklch */ color: oklch(39.6% 0.149 264.1);

Tailwind

colors: {
  custom: {
    50: '#6d72b5',
    500: '#1b3e95',
    950: '#000000',
  },
}

SCSS

$custom: #1b3e95;
$custom-light: #6d72b5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3e95",
  "rgb": {
    "r": 27,
    "g": 62,
    "b": 149
  },
  "hsl": {
    "h": 222.787,
    "s": 69.318,
    "l": 34.51
  },
  "oklch": {
    "l": 0.39587,
    "c": 0.14893,
    "h": 264.1
  },
  "luminance": 0.05848
}

Semantic roles & 50–950 ramp

primary

#1B3E95

secondary

#C19F4B

accent

#BA3CEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1B3E95

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

Preview Lab → · Contrast checker → · Palette generator →