#FF0F18
Closest named color: Bright Red (#FF000D). oklch(63.1% 0.254 28.1), rgb(255, 15, 24).
Aa
Black text reads best on this color (5.33:1).
About this color
#FF0F18 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.254 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Bright Red (#FF000D), ΔE 0.005 away. Black text reads best on it, at 5.33:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.254) |
| Temperature | warm |
| Nearest name | Bright Red (#FF000D) |
| Black text | 5.33:1 |
| White text | 3.93:1 |
Values
| HEX | #FF0F18 |
| RGB | rgb(255, 15, 24) |
| HSL | hsl(358, 100%, 53%) |
| OKLCH | oklch(63.1% 0.254 28.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #FF0F18 | 3.93:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #FF0F18 | 5.33:1 | AA | Lc 40.1 | Non-text elements, placeholder text |
| #FF0F18 text on white | 3.93:1 | AA large text | Lc 64.0 | Content text, not long reading |
| #FF0F18 text on black | 5.33:1 | AA | Lc -37.7 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FFE2DE
oklch(93.5% 0.033 27.1)
-
Step 200
200
#FFCBC3
oklch(88.6% 0.06 28.4)
-
Step 300
300
#FFA599
oklch(80.8% 0.109 28)
-
Step 400
400
#FF695B
oklch(70.6% 0.186 28.1)
-
Step 500
500 (this color)
#FF0F18
oklch(63.1% 0.254 28.1)
-
Step 600
600
#D9000E
oklch(55.6% 0.227 28.1)
-
Step 700
700
#B8000A
oklch(49.2% 0.201 28.1)
-
Step 800
800
#980007
oklch(42.7% 0.175 28)
-
Step 900
900
#800005
oklch(37.7% 0.154 28)
-
Step 950
950
#4E0404
oklch(27.1% 0.105 28)
#FF0F18 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #6E6111 | 0.279 |
| Deuteranopia (no green cones) | #A49100 | 0.249 |
| Tritanopia (no blue cones) | #FF001B | 0.005 |
| Achromatopsia (no color) | #808080 | 0.256 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #FF0F18
#FF0F18
oklch(63.1% 0.254 28.1)
- #009BAC
#009BAC
oklch(63.1% 0.109 208.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #FF0F18, closest first.
No curated palette has a color within ΔE 0.04 of #FF0F18.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Red #FF000D ΔE 0.005
- Red #FF0000 ΔE 0.007
- Fire Engine Red #FE0002 ΔE 0.008
- Cherry Red #F7022A ΔE 0.022
- Neon Red #FF073A ΔE 0.025
- Vermillion #F4320C ΔE 0.029
- Strawberry #FB2943 ΔE 0.031
- Pinky Red #FC2647 ΔE 0.035
Use #FF0F18 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.