#1F4E8F#1F4E8F

#1F4E8F is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.8% C 0.119 H 257.4°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E8F
RGB	rgb(31, 78, 143)
HSL	hsl(215, 64%, 34%)
HSV	hsv(215, 78%, 56%)
CMYK	cmyk(78.3%, 45.5%, 0%, 43.9%)
CIE-LAB	lab(33.40, 8.42, -40.54)
CIE-LCH	lch(33.40, 41.41, 281.73°)
OKLab	oklab(42.83% -0.026 -0.1162)
OKLCH	oklch(42.83% 0.119 257.4)
XYZ	xyz(8.2456, 7.7223, 27.0373)
Luminance	0.0772 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E8F #8F601F

analogous

#1F868F #1F4E8F #281F8F

triadic

#1F4E8F #8F1F4E #4E8F1F

tetradic

#1F4E8F #8F1F86 #8F601F #1F8F28

square

#1F4E8F #8F1F86 #8F601F #1F8F28

split-complementary

#1F4E8F #8F281F #868F1F

monochromatic

#09172A #14335D #1F4E8F #2A69C1 #4F89D9

Accessibility & contrast

On white

8.25

#1F4E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1F4E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E8F

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E8F	#FFFFFF	#000000	##FFFFFF
##1F4E8F	1.00	8.25	2.54	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5491

Deuteranopia (green-blind)

#164A8E

Tritanopia (blue-blind)

#005D67

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1f4e8f;
/* rgb */ color: rgb(31, 78, 143);
/* oklch */ color: oklch(42.8% 0.119 257.4);

Tailwind

colors: {
  custom: {
    50: '#6c7fb0',
    500: '#1f4e8f',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e8f;
$custom-light: #6c7fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e8f",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 143
  },
  "hsl": {
    "h": 214.821,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.42825,
    "c": 0.11903,
    "h": 257.4
  },
  "luminance": 0.07723
}

Semantic roles & 50–950 ramp

primary

#1F4E8F

secondary

#BC8E4E

accent

#A140E7

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #1F4E8F

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

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