#899CF0
Closest named color: Periwinkle Blue (#8F99FB). oklch(71.3% 0.125 273.2), rgb(137, 156, 240).
Aa
Black text reads best on this color (8.07:1).
About this color
#899CF0 is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.125 and its hue 273°. 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 8.07:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.07:1 |
| White text | 2.59:1 |
Values
| HEX | #899CF0 |
| RGB | rgb(137, 156, 240) |
| HSL | hsl(229, 77%, 74%) |
| OKLCH | oklch(71.3% 0.125 273.2) |
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 #899CF0 | 2.59:1 | Fails | Lc -55.8 | Large or bold text, headings |
| Black text on #899CF0 | 8.07:1 | AAA | Lc 53.3 | Large or bold text, headings |
| #899CF0 text on white | 2.59:1 | Fails | Lc 50.7 | Large or bold text, headings |
| #899CF0 text on black | 8.07:1 | AAA | Lc -51.2 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#CFD8F7
oklch(88.5% 0.044 272.7)
-
Step 300
300
#B0BEF4
oklch(81% 0.078 273.3)
-
Step 400
400 (this color)
#899CF0
oklch(71.3% 0.125 273.2)
-
Step 500
500
#6B7FE9
oklch(63.1% 0.16 273)
-
Step 600
600
#5565D7
oklch(55.5% 0.174 273.3)
-
Step 700
700
#4653BA
oklch(49% 0.161 273.5)
-
Step 800
800
#394597
oklch(42.7% 0.134 273.1)
-
Step 900
900
#313B78
oklch(37.8% 0.104 273.4)
-
Step 950
950
#1C2346
oklch(27% 0.065 272.8)
#899CF0 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) | #7EA5F3 | 0.025 |
| Deuteranopia (no green cones) | #759DEE | 0.024 |
| Tritanopia (no blue cones) | #66ADBB | 0.111 |
| Achromatopsia (no color) | #A0A0A0 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #899CF0
#899CF0
oklch(71.3% 0.125 273.2)
- #BDA038
#BDA038
oklch(71.3% 0.125 93.1)
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 #899CF0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.021
- Perrywinkle #8F8CE7 ΔE 0.040
- Cornflower Blue #6495ED ΔE 0.050
- Lavender Blue #8B88F8 ΔE 0.055
- Periwinkle #8E82FE ΔE 0.072
- Carolina Blue #8AB8FE ΔE 0.072
- Chefchaouen Blue #4895EF ΔE 0.073
- Soft Blue #6488EA ΔE 0.074
Use #899CF0 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.