#FF2905#FF2905

#FF2905 is a light, highly saturated red. Relative luminance 0.229; OKLCH L 64.0% C 0.246 H 31.2°. Best body text is #000000 at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#FF2905
RGB	rgb(255, 41, 5)
HSL	hsl(9, 100%, 51%)
HSV	hsv(9, 98%, 100%)
CMYK	cmyk(0%, 83.9%, 98%, 0%)
CIE-LAB	lab(54.93, 75.30, 66.68)
CIE-LCH	lch(54.93, 100.57, 41.53°)
OKLab	oklab(64.05% 0.2103 0.1274)
OKLCH	oklch(64.05% 0.246 31.2)
XYZ	xyz(42.0659, 22.8640, 2.3419)
Luminance	0.2286 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF2905 #05DBFF

analogous

#FF055E #FF2905 #FFA605

triadic

#FF2905 #05FF29 #2905FF

tetradic

#FF2905 #5EFF05 #05DBFF #A605FF

square

#FF2905 #5EFF05 #05DBFF #A605FF

split-complementary

#FF2905 #05FFA6 #055EFF

monochromatic

#8A1400 #C71D00 #FF2905 #FF5D42 #FF927F

Accessibility & contrast

On white

3.77

#FF2905 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.57

#FF2905 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #FF2905

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF2905	#FFFFFF	#000000	##000000
##FF2905	1.00	3.77	5.57	5.57
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.57	21.00	1.00	1.00
##000000	5.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#746600

Deuteranopia (green-blind)

#A79400

Tritanopia (blue-blind)

#FF0027

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #ff2905;
/* rgb */ color: rgb(255, 41, 5);
/* oklch */ color: oklch(64.0% 0.246 31.2);

Tailwind

colors: {
  custom: {
    50: '#ff7a55',
    500: '#ff2905',
    950: '#000000',
  },
}

SCSS

$custom: #ff2905;
$custom-light: #ff7a55;
$custom-dark: #000000;

JSON

{
  "hex": "#ff2905",
  "rgb": {
    "r": 255,
    "g": 41,
    "b": 5
  },
  "hsl": {
    "h": 8.64,
    "s": 100,
    "l": 50.98
  },
  "oklch": {
    "l": 0.6405,
    "c": 0.24593,
    "h": 31.2
  },
  "luminance": 0.22857
}

Semantic roles & 50–950 ramp

primary

#FF2905

secondary

#79D7E7

accent

#E0FF29

background

#FFF8F5

surface

#FFEFE9

border

#D7CAC5

text

#1C0B03

muted

#887C78

Preview Lab

Preview with #FF2905

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

Preview Lab → · Contrast checker → · Palette generator →