#1B487C#1B487C

#1B487C is a dark, moderate cyan. Relative luminance 0.063; OKLCH L 39.9% C 0.101 H 254.3°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#1B487C
RGB	rgb(27, 72, 124)
HSL	hsl(212, 64%, 30%)
HSV	hsv(212, 78%, 49%)
CMYK	cmyk(78.2%, 41.9%, 0%, 51.4%)
CIE-LAB	lab(30.21, 4.29, -33.92)
CIE-LCH	lch(30.21, 34.19, 277.22°)
OKLab	oklab(39.93% -0.0273 -0.0969)
OKLCH	oklch(39.93% 0.101 254.3)
XYZ	xyz(6.4061, 6.3222, 19.9476)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B487C #7C4F1B

analogous

#1B797C #1B487C #1F1B7C

triadic

#1B487C #7C1B48 #487C1B

tetradic

#1B487C #7C1B79 #7C4F1B #1B7C1F

square

#1B487C #7C1B79 #7C4F1B #1B7C1F

split-complementary

#1B487C #7C1F1B #797C1B

monochromatic

#050F19 #102B4A #1B487C #2665AE #3D83D5

Accessibility & contrast

On white

9.27

#1B487C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1B487C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B487C

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B487C	#FFFFFF	#000000	##FFFFFF
##1B487C	1.00	9.27	2.26	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4C7E

Deuteranopia (green-blind)

#1F437B

Tritanopia (blue-blind)

#00545C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b487c;
/* rgb */ color: rgb(27, 72, 124);
/* oklch */ color: oklch(39.9% 0.101 254.3);

Tailwind

colors: {
  custom: {
    50: '#667aa2',
    500: '#1b487c',
    950: '#000000',
  },
}

SCSS

$custom: #1b487c;
$custom-light: #667aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b487c",
  "rgb": {
    "r": 27,
    "g": 72,
    "b": 124
  },
  "hsl": {
    "h": 212.165,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.39926,
    "c": 0.10065,
    "h": 254.3
  },
  "luminance": 0.06323
}

Semantic roles & 50–950 ramp

primary

#1B487C

secondary

#B07D43

accent

#9A41E7

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1B487C

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

Preview Lab → · Contrast checker → · Palette generator →