#1B2E5F#1B2E5F

#1B2E5F is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.5% C 0.091 H 265.5°. Best body text is #FFFFFF at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E5F
RGB	rgb(27, 46, 95)
HSL	hsl(223, 56%, 24%)
HSV	hsv(223, 72%, 37%)
CMYK	cmyk(71.6%, 51.6%, 0%, 62.7%)
CIE-LAB	lab(20.10, 10.66, -31.54)
CIE-LCH	lch(20.10, 33.29, 288.68°)
OKLab	oklab(31.49% -0.007 -0.0903)
OKLCH	oklch(31.49% 0.091 265.5)
XYZ	xyz(3.4938, 3.0129, 11.2217)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E5F #5F4C1B

analogous

#1B505F #1B2E5F #2A1B5F

triadic

#1B2E5F #5F1B2E #2E5F1B

tetradic

#1B2E5F #5F1B50 #5F4C1B #1B5F2A

square

#1B2E5F #5F1B50 #5F4C1B #1B5F2A

split-complementary

#1B2E5F #5F2A1B #505F1B

monochromatic

#070C18 #0D172F #1B2E5F #29458F #365CBE

Accessibility & contrast

On white

13.10

#1B2E5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1B2E5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E5F

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E5F	#FFFFFF	#000000	##FFFFFF
##1B2E5F	1.00	13.10	1.60	13.10
#FFFFFF	13.10	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#143461

Deuteranopia (green-blind)

#052E5E

Tritanopia (blue-blind)

#003942

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b2e5f;
/* rgb */ color: rgb(27, 46, 95);
/* oklch */ color: oklch(31.5% 0.091 265.5);

Tailwind

colors: {
  custom: {
    50: '#60668d',
    500: '#1b2e5f',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e5f;
$custom-light: #60668d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e5f",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 95
  },
  "hsl": {
    "h": 223.235,
    "s": 55.738,
    "l": 23.922
  },
  "oklch": {
    "l": 0.31492,
    "c": 0.09062,
    "h": 265.5
  },
  "luminance": 0.03013
}

Semantic roles & 50–950 ramp

primary

#1B2E5F

secondary

#957D41

accent

#B549DF

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05050C

muted

#797A7D

Preview Lab

Preview with #1B2E5F

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

Preview Lab → · Contrast checker → · Palette generator →