#FF7540#FF7540

#FF7540 is a light, vivid orange. Relative luminance 0.344; OKLCH L 71.9% C 0.181 H 40.4°. Best body text is #000000 at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#FF7540
RGB	rgb(255, 117, 64)
HSL	hsl(17, 100%, 63%)
HSV	hsv(17, 75%, 100%)
CMYK	cmyk(0%, 54.1%, 74.9%, 0%)
CIE-LAB	lab(65.25, 49.44, 53.20)
CIE-LCH	lch(65.25, 72.62, 47.10°)
OKLab	oklab(71.9% 0.138 0.1176)
OKLCH	oklch(71.9% 0.181 40.4)
XYZ	xyz(48.5316, 34.3591, 8.9258)
Luminance	0.3435 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF7540 #40CAFF

analogous

#FF406B #FF7540 #FFD440

triadic

#FF7540 #40FF75 #7540FF

tetradic

#FF7540 #6BFF40 #40CAFF #D440FF

square

#FF7540 #6BFF40 #40CAFF #D440FF

split-complementary

#FF7540 #40FFD4 #406BFF

monochromatic

#C53700 #FF4903 #FF7540 #FFA17D #FFCDBA

Accessibility & contrast

On white

2.67

#FF7540 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.87

#FF7540 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FF7540

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF7540	#FFFFFF	#000000	##000000
##FF7540	1.00	2.67	7.87	7.87
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.87	21.00	1.00	1.00
##000000	7.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9B8B39

Deuteranopia (green-blind)

#BDAA3C

Tritanopia (blue-blind)

#FF576A

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #ff7540;
/* rgb */ color: rgb(255, 117, 64);
/* oklch */ color: oklch(71.9% 0.181 40.4);

Tailwind

colors: {
  custom: {
    50: '#ffa078',
    500: '#ff7540',
    950: '#000000',
  },
}

SCSS

$custom: #ff7540;
$custom-light: #ffa078;
$custom-dark: #000000;

JSON

{
  "hex": "#ff7540",
  "rgb": {
    "r": 255,
    "g": 117,
    "b": 64
  },
  "hsl": {
    "h": 16.649,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.71901,
    "c": 0.18135,
    "h": 40.4
  },
  "luminance": 0.34353
}

Semantic roles & 50–950 ramp

primary

#FF7540

secondary

#ABDDF0

accent

#A6E600

background

#FFFAF7

surface

#FFF3ED

border

#D7CDC8

text

#1A0F09

muted

#877F7B

Preview Lab

Preview with #FF7540

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

Preview Lab → · Contrast checker → · Palette generator →