#899FFF
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.6% 0.142 272.7), rgb(137, 159, 255).
Aa
Black text reads best on this color (8.46:1).
About this color
#899FFF is a medium-light, vivid blue. In OKLCH its lightness is 73%, its chroma 0.142 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.016 away. Black text reads best on it, at 8.46:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.46:1 |
| White text | 2.48:1 |
Values
| HEX | #899FFF |
| RGB | rgb(137, 159, 255) |
| HSL | hsl(229, 100%, 77%) |
| OKLCH | oklch(72.6% 0.142 272.7) |
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 #899FFF | 2.48:1 | Fails | Lc -53.7 | Large or bold text, headings |
| Black text on #899FFF | 8.46:1 | AAA | Lc 55.4 | Large or bold text, headings |
| #899FFF text on white | 2.48:1 | Fails | Lc 48.6 | Large or bold text, headings |
| #899FFF text on black | 8.46:1 | AAA | Lc -53.4 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CED8FB
oklch(88.6% 0.049 272.8)
-
Step 300
300
#ADBDFB
oklch(80.8% 0.09 273.1)
-
Step 400
400 (this color)
#899FFF
oklch(72.6% 0.142 272.7)
-
Step 500
500
#677CF5
oklch(63.1% 0.181 272.8)
-
Step 600
600
#5162E4
oklch(55.7% 0.196 272.7)
-
Step 700
700
#4250C6
oklch(49.2% 0.182 272.6)
-
Step 800
800
#3642A0
oklch(42.7% 0.152 272.7)
-
Step 900
900
#2E397F
oklch(37.7% 0.118 272.7)
-
Step 950
950
#1B224A
oklch(27% 0.074 273)
#899FFF 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) | #7BAAFF | 0.031 |
| Deuteranopia (no green cones) | #70A0FD | 0.029 |
| Tritanopia (no blue cones) | #5DB3C3 | 0.126 |
| Achromatopsia (no color) | #A4A4A4 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #899FFF
#899FFF
oklch(72.6% 0.142 272.7)
- #C6A31E
#C6A31E
oklch(72.7% 0.142 92.4)
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 #899FFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.016
- Perrywinkle #8F8CE7 ΔE 0.053
- Lavender Blue #8B88F8 ΔE 0.057
- Cornflower Blue #6495ED ΔE 0.059
- Carolina Blue #8AB8FE ΔE 0.066
- Periwinkle #8E82FE ΔE 0.072
- Chefchaouen Blue #4895EF ΔE 0.080
- Soft Blue #6488EA ΔE 0.082
Use #899FFF 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.