#1B334F#1B334F

#1B334F is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.6% C 0.059 H 253.4°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#1B334F
RGB	rgb(27, 51, 79)
HSL	hsl(212, 49%, 21%)
HSV	hsv(212, 66%, 31%)
CMYK	cmyk(65.8%, 35.4%, 0%, 69%)
CIE-LAB	lab(20.69, 0.67, -19.96)
CIE-LCH	lch(20.69, 19.97, 271.93°)
OKLab	oklab(31.62% -0.0168 -0.0564)
OKLCH	oklch(31.62% 0.059 253.4)
XYZ	xyz(3.0466, 3.1649, 7.8460)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B334F #4F371B

analogous

#1B4D4F #1B334F #1D1B4F

triadic

#1B334F #4F1B33 #334F1B

tetradic

#1B334F #4F1B4D #4F371B #1B4F1D

square

#1B334F #4F1B4D #4F371B #1B4F1D

split-complementary

#1B334F #4F1D1B #4D4F1B

monochromatic

#080F17 #0B1621 #1B334F #2B507D #3A6EAA

Accessibility & contrast

On white

12.86

#1B334F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#1B334F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B334F

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B334F	#FFFFFF	#000000	##FFFFFF
##1B334F	1.00	12.86	1.63	12.86
#FFFFFF	12.86	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273550

Deuteranopia (green-blind)

#20304E

Tritanopia (blue-blind)

#00393D

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1b334f;
/* rgb */ color: rgb(27, 51, 79);
/* oklch */ color: oklch(31.6% 0.059 253.4);

Tailwind

colors: {
  custom: {
    50: '#5d6a80',
    500: '#1b334f',
    950: '#000000',
  },
}

SCSS

$custom: #1b334f;
$custom-light: #5d6a80;
$custom-dark: #000000;

JSON

{
  "hex": "#1b334f",
  "rgb": {
    "r": 27,
    "g": 51,
    "b": 79
  },
  "hsl": {
    "h": 212.308,
    "s": 49.057,
    "l": 20.784
  },
  "oklch": {
    "l": 0.3162,
    "c": 0.05883,
    "h": 253.4
  },
  "luminance": 0.03165
}

Semantic roles & 50–950 ramp

primary

#1B334F

secondary

#856641

accent

#994FD9

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #1B334F

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

Preview Lab → · Contrast checker → · Palette generator →