#1F517A#1F517A

#1F517A is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.2% C 0.087 H 246.7°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#1F517A
RGB	rgb(31, 81, 122)
HSL	hsl(207, 59%, 30%)
HSV	hsv(207, 75%, 48%)
CMYK	cmyk(74.6%, 33.6%, 0%, 52.2%)
CIE-LAB	lab(33.09, -1.84, -28.09)
CIE-LCH	lch(33.09, 28.15, 266.26°)
OKLab	oklab(42.18% -0.0344 -0.0796)
OKLCH	oklch(42.18% 0.087 246.7)
XYZ	xyz(7.0190, 7.5805, 19.5018)
Luminance	0.0758 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F517A #7A481F

analogous

#1F7A75 #1F517A #1F247A

triadic

#1F517A #7A1F51 #517A1F

tetradic

#1F517A #751F7A #7A481F #247A1F

square

#1F517A #751F7A #7A481F #247A1F

split-complementary

#1F517A #7A1F24 #7A751F

monochromatic

#061018 #133149 #1F517A #2B71AB #4491CF

Accessibility & contrast

On white

8.35

#1F517A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#1F517A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F517A

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F517A	#FFFFFF	#000000	##FFFFFF
##1F517A	1.00	8.35	2.52	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E537C

Deuteranopia (green-blind)

#324A79

Tritanopia (blue-blind)

#005B60

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1f517a;
/* rgb */ color: rgb(31, 81, 122);
/* oklch */ color: oklch(42.2% 0.087 246.7);

Tailwind

colors: {
  custom: {
    50: '#6781a0',
    500: '#1f517a',
    950: '#000000',
  },
}

SCSS

$custom: #1f517a;
$custom-light: #6781a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f517a",
  "rgb": {
    "r": 31,
    "g": 81,
    "b": 122
  },
  "hsl": {
    "h": 207.033,
    "s": 59.477,
    "l": 30
  },
  "oklch": {
    "l": 0.42184,
    "c": 0.08673,
    "h": 246.7
  },
  "luminance": 0.07581
}

Semantic roles & 50–950 ramp

primary

#1F517A

secondary

#AD7547

accent

#8C45E3

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0F

muted

#7A7C7E

Preview Lab

Preview with #1F517A

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

Preview Lab → · Contrast checker → · Palette generator →