#1B2B65#1B2B65

#1B2B65 is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.3% C 0.104 H 268.2°. Best body text is #FFFFFF at 13.29:1 contrast (WCAG AA passes).

Color values

HEX	#1B2B65
RGB	rgb(27, 43, 101)
HSL	hsl(227, 58%, 25%)
HSV	hsv(227, 73%, 40%)
CMYK	cmyk(73.3%, 57.4%, 0%, 60.4%)
CIE-LAB	lab(19.64, 15.29, -36.21)
CIE-LCH	lch(19.64, 39.31, 292.89°)
OKLab	oklab(31.29% -0.0033 -0.1042)
OKLCH	oklch(31.29% 0.104 268.2)
XYZ	xyz(3.6640, 2.9000, 12.6761)
Luminance	0.0290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2B65 #65551B

analogous

#1B5065 #1B2B65 #301B65

triadic

#1B2B65 #651B2B #2B651B

tetradic

#1B2B65 #651B50 #65551B #1B6530

square

#1B2B65 #651B50 #65551B #1B6530

split-complementary

#1B2B65 #65301B #50651B

monochromatic

#060A18 #0E1635 #1B2B65 #284095 #3554C6

Accessibility & contrast

On white

13.29

#1B2B65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1B2B65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2B65

13.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2B65	#FFFFFF	#000000	##FFFFFF
##1B2B65	1.00	13.29	1.58	13.29
#FFFFFF	13.29	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#013367

Deuteranopia (green-blind)

#002C64

Tritanopia (blue-blind)

#003943

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b2b65;
/* rgb */ color: rgb(27, 43, 101);
/* oklch */ color: oklch(31.3% 0.104 268.2);

Tailwind

colors: {
  custom: {
    50: '#626391',
    500: '#1b2b65',
    950: '#000000',
  },
}

SCSS

$custom: #1b2b65;
$custom-light: #626391;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2b65",
  "rgb": {
    "r": 27,
    "g": 43,
    "b": 101
  },
  "hsl": {
    "h": 227.027,
    "s": 57.813,
    "l": 25.098
  },
  "oklch": {
    "l": 0.31292,
    "c": 0.10421,
    "h": 268.2
  },
  "luminance": 0.029
}

Semantic roles & 50–950 ramp

primary

#1B2B65

secondary

#9A8741

accent

#C047E1

background

#F6F5F9

surface

#EBEAF1

border

#C6C6CB

text

#06050D

muted

#7A797E

Preview Lab

Preview with #1B2B65

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

Preview Lab → · Contrast checker → · Palette generator →