#819BEC
Closest named color: Periwinkle Blue (#8F99FB). oklch(70.3% 0.123 269.5), rgb(129, 155, 236).
Aa
Black text reads best on this color (7.83:1).
About this color
#819BEC is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.123 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.030 away. Black text reads best on it, at 7.83:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 7.83:1 |
| White text | 2.68:1 |
Values
| HEX | #819BEC |
| RGB | rgb(129, 155, 236) |
| HSL | hsl(225, 74%, 72%) |
| OKLCH | oklch(70.3% 0.123 269.5) |
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 #819BEC | 2.68:1 | Fails | Lc -57.2 | Large or bold text, headings |
| Black text on #819BEC | 7.83:1 | AAA | Lc 52.0 | Large or bold text, headings |
| #819BEC text on white | 2.68:1 | Fails | Lc 52.0 | Large or bold text, headings |
| #819BEC text on black | 7.83:1 | AAA | Lc -49.9 | 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
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED9F6
oklch(88.6% 0.042 269)
-
Step 300
300
#ADBFF3
oklch(80.9% 0.076 269.8)
-
Step 400
400 (this color)
#819BEC
oklch(70.3% 0.123 269.5)
-
Step 500
500
#6481E7
oklch(63% 0.157 269.6)
-
Step 600
600
#4D68D6
oklch(55.6% 0.171 269.7)
-
Step 700
700
#3E56B9
oklch(49.1% 0.158 269.5)
-
Step 800
800
#334796
oklch(42.7% 0.132 269.4)
-
Step 900
900
#2C3C77
oklch(37.6% 0.102 269.5)
-
Step 950
950
#1A2446
oklch(27.1% 0.065 269.4)
#819BEC 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) | #7DA3EF | 0.021 |
| Deuteranopia (no green cones) | #739AEA | 0.018 |
| Tritanopia (no blue cones) | #59ACB9 | 0.110 |
| Achromatopsia (no color) | #9E9E9E | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #819BEC
#819BEC
oklch(70.3% 0.123 269.5)
- #BE9B37
#BE9B37
oklch(70.3% 0.123 89.1)
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 #819BEC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.030
- Cornflower Blue #6495ED ΔE 0.039
- Perrywinkle #8F8CE7 ΔE 0.040
- Lavender Blue #8B88F8 ΔE 0.056
- Chefchaouen Blue #4895EF ΔE 0.063
- Soft Blue #6488EA ΔE 0.065
- Periwinkle #8E82FE ΔE 0.074
- Dark Sky Blue #448EE4 ΔE 0.077
Use #819BEC 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.