#1B506F#1B506F

#1B506F is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.2% C 0.076 H 238.4°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B506F
RGB	rgb(27, 80, 111)
HSL	hsl(202, 61%, 27%)
HSV	hsv(202, 76%, 44%)
CMYK	cmyk(75.7%, 27.9%, 0%, 56.5%)
CIE-LAB	lab(32.07, -6.06, -22.84)
CIE-LCH	lch(32.07, 23.63, 255.15°)
OKLab	oklab(41.15% -0.0396 -0.0644)
OKLCH	oklch(41.15% 0.076 238.4)
XYZ	xyz(6.1888, 7.1173, 16.0835)
Luminance	0.0712 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B506F #6F3A1B

analogous

#1B6F64 #1B506F #1B266F

triadic

#1B506F #6F1B50 #506F1B

tetradic

#1B506F #641B6F #6F3A1B #266F1B

square

#1B506F #641B6F #6F3A1B #266F1B

split-complementary

#1B506F #6F1B26 #6F641B

monochromatic

#061219 #0F2D3E #1B506F #2773A0 #3696CE

Accessibility & contrast

On white

8.66

#1B506F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#1B506F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B506F

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B506F	#FFFFFF	#000000	##FFFFFF
##1B506F	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415070

Deuteranopia (green-blind)

#36486E

Tritanopia (blue-blind)

#00585B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b506f;
/* rgb */ color: rgb(27, 80, 111);
/* oklch */ color: oklch(41.2% 0.076 238.4);

Tailwind

colors: {
  custom: {
    50: '#648198',
    500: '#1b506f',
    950: '#000000',
  },
}

SCSS

$custom: #1b506f;
$custom-light: #648198;
$custom-dark: #000000;

JSON

{
  "hex": "#1b506f",
  "rgb": {
    "r": 27,
    "g": 80,
    "b": 111
  },
  "hsl": {
    "h": 202.143,
    "s": 60.87,
    "l": 27.059
  },
  "oklch": {
    "l": 0.41154,
    "c": 0.0756,
    "h": 238.4
  },
  "luminance": 0.07118
}

Semantic roles & 50–950 ramp

primary

#1B506F

secondary

#A46642

accent

#7F44E4

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #1B506F

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

Preview Lab → · Contrast checker → · Palette generator →