#899EF9
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.1% 0.135 272.8), rgb(137, 158, 249).
Aa
Black text reads best on this color (8.32:1).
About this color
#899EF9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.135 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.015 away. Black text reads best on it, at 8.32:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.32:1 |
| White text | 2.52:1 |
Values
| HEX | #899EF9 |
| RGB | rgb(137, 158, 249) |
| HSL | hsl(229, 90%, 76%) |
| OKLCH | oklch(72.1% 0.135 272.8) |
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 #899EF9 | 2.52:1 | Fails | Lc -54.5 | Large or bold text, headings |
| Black text on #899EF9 | 8.32:1 | AAA | Lc 54.6 | Large or bold text, headings |
| #899EF9 text on white | 2.52:1 | Fails | Lc 49.4 | Large or bold text, headings |
| #899EF9 text on black | 8.32:1 | AAA | Lc -52.6 | 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
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8F9
oklch(88.5% 0.047 272.1)
-
Step 300
300
#AEBEF8
oklch(81% 0.084 272.5)
-
Step 400
400 (this color)
#899EF9
oklch(72.1% 0.135 272.8)
-
Step 500
500
#687DF0
oklch(63% 0.173 272.7)
-
Step 600
600
#5263DE
oklch(55.5% 0.187 272.8)
-
Step 700
700
#4351C1
oklch(49% 0.174 272.8)
-
Step 800
800
#37439C
oklch(42.6% 0.144 272.9)
-
Step 900
900
#2F3A7C
oklch(37.7% 0.112 272.8)
-
Step 950
950
#1B2249
oklch(26.9% 0.072 272.9)
#899EF9 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) | #7DA8FD | 0.027 |
| Deuteranopia (no green cones) | #739FF7 | 0.026 |
| Tritanopia (no blue cones) | #61B1C0 | 0.120 |
| Achromatopsia (no color) | #A3A3A3 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #899EF9
#899EF9
oklch(72.1% 0.135 272.8)
- #C2A22B
#C2A22B
oklch(72.1% 0.135 93)
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 #899EF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.015
- Perrywinkle #8F8CE7 ΔE 0.048
- Cornflower Blue #6495ED ΔE 0.054
- Lavender Blue #8B88F8 ΔE 0.055
- Carolina Blue #8AB8FE ΔE 0.068
- Periwinkle #8E82FE ΔE 0.071
- Chefchaouen Blue #4895EF ΔE 0.077
- Soft Blue #6488EA ΔE 0.079
Use #899EF9 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.