#1B4F7E#1B4F7E

#1B4F7E is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 41.8% C 0.096 H 249.4°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#1B4F7E
RGB	rgb(27, 79, 126)
HSL	hsl(208, 65%, 30%)
HSV	hsv(208, 79%, 49%)
CMYK	cmyk(78.6%, 37.3%, 0%, 50.6%)
CIE-LAB	lab(32.55, 0.45, -31.45)
CIE-LCH	lch(32.55, 31.45, 270.82°)
OKLab	oklab(41.79% -0.0336 -0.0895)
OKLCH	oklch(41.79% 0.096 249.4)
XYZ	xyz(7.0124, 7.3305, 20.7800)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4F7E #7E4A1B

analogous

#1B7E7C #1B4F7E #1B1D7E

triadic

#1B4F7E #7E1B4F #4F7E1B

tetradic

#1B4F7E #7C1B7E #7E4A1B #1D7E1B

square

#1B4F7E #7C1B7E #7E4A1B #1D7E1B

split-complementary

#1B4F7E #7E1B1D #7E7C1B

monochromatic

#051019 #102F4C #1B4F7E #266FB0 #3E8ED6

Accessibility & contrast

On white

8.52

#1B4F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1B4F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4F7E

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4F7E	#FFFFFF	#000000	##FFFFFF
##1B4F7E	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395280

Deuteranopia (green-blind)

#2B487D

Tritanopia (blue-blind)

#005A60

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b4f7e;
/* rgb */ color: rgb(27, 79, 126);
/* oklch */ color: oklch(41.8% 0.096 249.4);

Tailwind

colors: {
  custom: {
    50: '#6780a3',
    500: '#1b4f7e',
    950: '#000000',
  },
}

SCSS

$custom: #1b4f7e;
$custom-light: #6780a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4f7e",
  "rgb": {
    "r": 27,
    "g": 79,
    "b": 126
  },
  "hsl": {
    "h": 208.485,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.41791,
    "c": 0.09561,
    "h": 249.4
  },
  "luminance": 0.07331
}

Semantic roles & 50–950 ramp

primary

#1B4F7E

secondary

#B27843

accent

#9040E8

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1B4F7E

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

Preview Lab → · Contrast checker → · Palette generator →