#1B414F#1B414F

#1B414F is a dark, muted cyan. Relative luminance 0.046; OKLCH L 35.4% C 0.049 H 225.0°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#1B414F
RGB	rgb(27, 65, 79)
HSL	hsl(196, 49%, 21%)
HSV	hsv(196, 66%, 31%)
CMYK	cmyk(65.8%, 17.7%, 0%, 69%)
CIE-LAB	lab(25.50, -8.60, -12.50)
CIE-LCH	lch(25.50, 15.18, 235.48°)
OKLab	oklab(35.42% -0.0348 -0.0348)
OKLCH	oklch(35.42% 0.049 225)
XYZ	xyz(3.7530, 4.5778, 8.0814)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B414F #4F291B

analogous

#1B4F43 #1B414F #1B274F

triadic

#1B414F #4F1B41 #414F1B

tetradic

#1B414F #431B4F #4F291B #274F1B

square

#1B414F #431B4F #4F291B #274F1B

split-complementary

#1B414F #4F1B27 #4F431B

monochromatic

#081317 #0B1B21 #1B414F #2B677D #3A8CAA

Accessibility & contrast

On white

10.96

#1B414F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#1B414F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B414F

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B414F	#FFFFFF	#000000	##FFFFFF
##1B414F	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#394050

Deuteranopia (green-blind)

#323A4F

Tritanopia (blue-blind)

#004545

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1b414f;
/* rgb */ color: rgb(27, 65, 79);
/* oklch */ color: oklch(35.4% 0.049 225.0);

Tailwind

colors: {
  custom: {
    50: '#5d7580',
    500: '#1b414f',
    950: '#000000',
  },
}

SCSS

$custom: #1b414f;
$custom-light: #5d7580;
$custom-dark: #000000;

JSON

{
  "hex": "#1b414f",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 79
  },
  "hsl": {
    "h": 196.154,
    "s": 49.057,
    "l": 20.784
  },
  "oklch": {
    "l": 0.35422,
    "c": 0.04926,
    "h": 225
  },
  "luminance": 0.04578
}

Semantic roles & 50–950 ramp

primary

#1B414F

secondary

#855341

accent

#744FD9

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #1B414F

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

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