#1F549B#1F549B

#1F549B is a mid, vivid cyan. Relative luminance 0.090; OKLCH L 45.1% C 0.129 H 257.0°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#1F549B
RGB	rgb(31, 84, 155)
HSL	hsl(214, 67%, 36%)
HSV	hsv(214, 80%, 61%)
CMYK	cmyk(80%, 45.8%, 0%, 39.2%)
CIE-LAB	lab(35.98, 9.20, -43.67)
CIE-LCH	lch(35.98, 44.63, 281.90°)
OKLab	oklab(45.07% -0.0288 -0.1253)
OKLCH	oklch(45.07% 0.129 257)
XYZ	xyz(9.6496, 8.9974, 32.2321)
Luminance	0.0900 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F549B #9B661F

analogous

#1F929B #1F549B #281F9B

triadic

#1F549B #9B1F54 #549B1F

tetradic

#1F549B #9B1F92 #9B661F #1F9B28

square

#1F549B #9B1F92 #9B661F #1F9B28

split-complementary

#1F549B #9B281F #929B1F

monochromatic

#0B1D35 #153868 #1F549B #2970CE #5790DD

Accessibility & contrast

On white

7.50

#1F549B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#1F549B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F549B

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F549B	#FFFFFF	#000000	##FFFFFF
##1F549B	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5B9E

Deuteranopia (green-blind)

#134F9A

Tritanopia (blue-blind)

#006570

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1f549b;
/* rgb */ color: rgb(31, 84, 155);
/* oklch */ color: oklch(45.1% 0.129 257.0);

Tailwind

colors: {
  custom: {
    50: '#6f83b9',
    500: '#1f549b',
    950: '#000000',
  },
}

SCSS

$custom: #1f549b;
$custom-light: #6f83b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f549b",
  "rgb": {
    "r": 31,
    "g": 84,
    "b": 155
  },
  "hsl": {
    "h": 214.355,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.45071,
    "c": 0.12854,
    "h": 257
  },
  "luminance": 0.08999
}

Semantic roles & 50–950 ramp

primary

#1F549B

secondary

#C19355

accent

#A03EEA

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1F549B

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

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