#819DEC
Closest named color: Periwinkle Blue (#8F99FB). oklch(70.7% 0.12 268.4), rgb(129, 157, 236).
Aa
Black text reads best on this color (7.96:1).
About this color
#819DEC is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.120 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.032 away. Black text reads best on it, at 7.96:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 7.96:1 |
| White text | 2.63:1 |
Values
| HEX | #819DEC |
| RGB | rgb(129, 157, 236) |
| HSL | hsl(224, 74%, 72%) |
| OKLCH | oklch(70.7% 0.12 268.4) |
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 #819DEC | 2.63:1 | Fails | Lc -56.4 | Large or bold text, headings |
| Black text on #819DEC | 7.96:1 | AAA | Lc 52.8 | Large or bold text, headings |
| #819DEC text on white | 2.63:1 | Fails | Lc 51.3 | Large or bold text, headings |
| #819DEC text on black | 7.96:1 | AAA | Lc -50.6 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CDD9F6
oklch(88.5% 0.042 267.7)
-
Step 300
300
#ACBFF2
oklch(80.8% 0.075 268.8)
-
Step 400
400 (this color)
#819DEC
oklch(70.7% 0.12 268.4)
-
Step 500
500
#6282E6
oklch(63% 0.155 268.4)
-
Step 600
600
#4B69D4
oklch(55.5% 0.168 268.6)
-
Step 700
700
#3C57B8
oklch(49.1% 0.156 268.4)
-
Step 800
800
#324895
oklch(42.8% 0.129 268.5)
-
Step 900
900
#2B3D76
oklch(37.7% 0.1 268.2)
-
Step 950
950
#192445
oklch(26.9% 0.063 268.1)
#819DEC 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) | #80A4EF | 0.018 |
| Deuteranopia (no green cones) | #769BEA | 0.015 |
| Tritanopia (no blue cones) | #59ADBA | 0.107 |
| Achromatopsia (no color) | #9F9F9F | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #819DEC
#819DEC
oklch(70.7% 0.12 268.4)
- #BF9C3C
#BF9C3C
oklch(70.7% 0.12 88.6)
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 #819DEC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.032
- Cornflower Blue #6495ED ΔE 0.042
- Perrywinkle #8F8CE7 ΔE 0.045
- Lavender Blue #8B88F8 ΔE 0.060
- Chefchaouen Blue #4895EF ΔE 0.065
- Soft Blue #6488EA ΔE 0.069
- Carolina Blue #8AB8FE ΔE 0.073
- Periwinkle #8E82FE ΔE 0.078
Use #819DEC 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.