#1B2E4F#1B2E4F

#1B2E4F is a dark, moderate blue. Relative luminance 0.028; OKLCH L 30.3% C 0.065 H 260.8°. Best body text is #FFFFFF at 13.54:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E4F
RGB	rgb(27, 46, 79)
HSL	hsl(218, 49%, 21%)
HSV	hsv(218, 66%, 31%)
CMYK	cmyk(65.8%, 41.8%, 0%, 69%)
CIE-LAB	lab(19.02, 4.21, -22.60)
CIE-LCH	lch(19.02, 22.99, 280.54°)
OKLab	oklab(30.32% -0.0104 -0.0641)
OKLCH	oklch(30.32% 0.065 260.8)
XYZ	xyz(2.8398, 2.7513, 7.7770)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E4F #4F3C1B

analogous

#1B484F #1B2E4F #221B4F

triadic

#1B2E4F #4F1B2E #2E4F1B

tetradic

#1B2E4F #4F1B48 #4F3C1B #1B4F22

square

#1B2E4F #4F1B48 #4F3C1B #1B4F22

split-complementary

#1B2E4F #4F221B #484F1B

monochromatic

#080D17 #0B1321 #1B2E4F #2B497D #3A63AA

Accessibility & contrast

On white

13.54

#1B2E4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1B2E4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E4F

13.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E4F	#FFFFFF	#000000	##FFFFFF
##1B2E4F	1.00	13.54	1.55	13.54
#FFFFFF	13.54	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#203150

Deuteranopia (green-blind)

#192C4E

Tritanopia (blue-blind)

#00353A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1b2e4f;
/* rgb */ color: rgb(27, 46, 79);
/* oklch */ color: oklch(30.3% 0.065 260.8);

Tailwind

colors: {
  custom: {
    50: '#5d6680',
    500: '#1b2e4f',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e4f;
$custom-light: #5d6680;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e4f",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 79
  },
  "hsl": {
    "h": 218.077,
    "s": 49.057,
    "l": 20.784
  },
  "oklch": {
    "l": 0.30315,
    "c": 0.06497,
    "h": 260.8
  },
  "luminance": 0.02752
}

Semantic roles & 50–950 ramp

primary

#1B2E4F

secondary

#856C41

accent

#A64FD9

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04050A

muted

#797A7C

Preview Lab

Preview with #1B2E4F

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

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