#1B4E7F#1B4E7F

#1B4E7F is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.6% C 0.098 H 250.7°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E7F
RGB	rgb(27, 78, 127)
HSL	hsl(209, 65%, 30%)
HSV	hsv(209, 79%, 50%)
CMYK	cmyk(78.7%, 38.6%, 0%, 50.2%)
CIE-LAB	lab(32.29, 1.50, -32.48)
CIE-LCH	lch(32.29, 32.51, 272.65°)
OKLab	oklab(41.61% -0.0324 -0.0925)
OKLCH	oklch(41.61% 0.098 250.7)
XYZ	xyz(7.0057, 7.2133, 21.0976)
Luminance	0.0721 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E7F #7F4C1B

analogous

#1B7F7E #1B4E7F #1B1C7F

triadic

#1B4E7F #7F1B4E #4E7F1B

tetradic

#1B4E7F #7E1B7F #7F4C1B #1C7F1B

square

#1B4E7F #7E1B7F #7F4C1B #1C7F1B

split-complementary

#1B4E7F #7F1B1C #7F7E1B

monochromatic

#06101A #102F4D #1B4E7F #266DB1 #3E8CD6

Accessibility & contrast

On white

8.60

#1B4E7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#1B4E7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E7F

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E7F	#FFFFFF	#000000	##FFFFFF
##1B4E7F	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375181

Deuteranopia (green-blind)

#28487E

Tritanopia (blue-blind)

#005A60

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b4e7f;
/* rgb */ color: rgb(27, 78, 127);
/* oklch */ color: oklch(41.6% 0.098 250.7);

Tailwind

colors: {
  custom: {
    50: '#677fa4',
    500: '#1b4e7f',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e7f;
$custom-light: #677fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e7f",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 127
  },
  "hsl": {
    "h": 209.4,
    "s": 64.935,
    "l": 30.196
  },
  "oklch": {
    "l": 0.41606,
    "c": 0.09803,
    "h": 250.7
  },
  "luminance": 0.07214
}

Semantic roles & 50–950 ramp

primary

#1B4E7F

secondary

#B37A43

accent

#9240E8

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1B4E7F

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

Preview Lab → · Contrast checker → · Palette generator →