#7F99FF
Closest named color: Periwinkle Blue (#8F99FB). oklch(70.8% 0.152 271.3), rgb(127, 153, 255).
Aa
Black text reads best on this color (7.90:1).
About this color
#7F99FF is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.152 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.021 away. Black text reads best on it, at 7.90:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 7.90:1 |
| White text | 2.65:1 |
Values
| HEX | #7F99FF |
| RGB | rgb(127, 153, 255) |
| HSL | hsl(228, 100%, 75%) |
| OKLCH | oklch(70.8% 0.152 271.3) |
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 #7F99FF | 2.65:1 | Fails | Lc -56.7 | Large or bold text, headings |
| Black text on #7F99FF | 7.90:1 | AAA | Lc 52.5 | Large or bold text, headings |
| #7F99FF text on white | 2.65:1 | Fails | Lc 51.5 | Large or bold text, headings |
| #7F99FF text on black | 7.90:1 | AAA | Lc -50.3 | Large or bold text, headings |
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 400.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CCD8FD
oklch(88.5% 0.053 271.1)
-
Step 300
300
#AABEFF
oklch(81% 0.095 271)
-
Step 400
400 (this color)
#7F99FF
oklch(70.8% 0.152 271.3)
-
Step 500
500
#617BFD
oklch(63.1% 0.194 271.3)
-
Step 600
600
#4B60EC
oklch(55.6% 0.211 271.3)
-
Step 700
700
#3D4ECD
oklch(49.1% 0.195 271.3)
-
Step 800
800
#3241A6
oklch(42.7% 0.162 271.3)
-
Step 900
900
#2B3884
oklch(37.7% 0.128 271.5)
-
Step 950
950
#19224D
oklch(27.1% 0.08 271.2)
#7F99FF 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) | #70A5FF | 0.033 |
| Deuteranopia (no green cones) | #639AFD | 0.031 |
| Tritanopia (no blue cones) | #47AFC0 | 0.136 |
| Achromatopsia (no color) | #9F9F9F | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7F99FF
#7F99FF
oklch(70.8% 0.152 271.3)
- #C29C00
#C29C00
oklch(70.7% 0.145 91.2)
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 #7F99FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.021
- Lavender Blue #8B88F8 ΔE 0.043
- Cornflower Blue #6495ED ΔE 0.043
- Perrywinkle #8F8CE7 ΔE 0.046
- Periwinkle #8E82FE ΔE 0.058
- Soft Blue #6488EA ΔE 0.063
- Chefchaouen Blue #4895EF ΔE 0.064
- Dark Sky Blue #448EE4 ΔE 0.081
Use #7F99FF 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.