#1B456D#1B456D

#1B456D is a dark, moderate cyan. Relative luminance 0.056; OKLCH L 38.2% C 0.083 H 250.0°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#1B456D
RGB	rgb(27, 69, 109)
HSL	hsl(209, 60%, 27%)
HSV	hsv(209, 75%, 43%)
CMYK	cmyk(75.2%, 36.7%, 0%, 57.3%)
CIE-LAB	lab(28.36, 0.28, -27.41)
CIE-LCH	lch(28.36, 27.41, 270.59°)
OKLab	oklab(38.19% -0.0284 -0.0779)
OKLCH	oklch(38.19% 0.083 250)
XYZ	xyz(5.3394, 5.5928, 15.2632)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B456D #6D431B

analogous

#1B6D6C #1B456D #1B1C6D

triadic

#1B456D #6D1B45 #456D1B

tetradic

#1B456D #6C1B6D #6D431B #1C6D1B

square

#1B456D #6C1B6D #6D431B #1C6D1B

split-complementary

#1B456D #6D1B1C #6D6C1B

monochromatic

#061019 #0F263C #1B456D #27649E #3583CD

Accessibility & contrast

On white

9.91

#1B456D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1B456D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B456D

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B456D	#FFFFFF	#000000	##FFFFFF
##1B456D	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33476F

Deuteranopia (green-blind)

#273F6C

Tritanopia (blue-blind)

#004E54

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1b456d;
/* rgb */ color: rgb(27, 69, 109);
/* oklch */ color: oklch(38.2% 0.083 250.0);

Tailwind

colors: {
  custom: {
    50: '#637897',
    500: '#1b456d',
    950: '#000000',
  },
}

SCSS

$custom: #1b456d;
$custom-light: #637897;
$custom-dark: #000000;

JSON

{
  "hex": "#1b456d",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 109
  },
  "hsl": {
    "h": 209.268,
    "s": 60.294,
    "l": 26.667
  },
  "oklch": {
    "l": 0.38189,
    "c": 0.08287,
    "h": 250
  },
  "luminance": 0.05593
}

Semantic roles & 50–950 ramp

primary

#1B456D

secondary

#A27142

accent

#9244E3

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #1B456D

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

Preview Lab → · Contrast checker → · Palette generator →