#819CD4
Closest named color: Greyblue (#77A1B5). oklch(69.4% 0.088 264.4), rgb(129, 156, 212).
Aa
Black text reads best on this color (7.63:1).
About this color
#819CD4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.088 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.055 away. Black text reads best on it, at 7.63:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.63:1 |
| White text | 2.74:1 |
Values
| HEX | #819CD4 |
| RGB | rgb(129, 156, 212) |
| HSL | hsl(220, 49%, 67%) |
| OKLCH | oklch(69.4% 0.088 264.4) |
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 #819CD4 | 2.74:1 | Fails | Lc -58.3 | Large or bold text, headings |
| Black text on #819CD4 | 7.63:1 | AAA | Lc 51.0 | Large or bold text, headings |
| #819CD4 text on white | 2.74:1 | Fails | Lc 53.1 | Large or bold text, headings |
| #819CD4 text on black | 7.63:1 | AAA | Lc -48.8 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CFD9EE
oklch(88.4% 0.031 265.3)
-
Step 300
300
#AFC1E5
oklch(80.9% 0.055 264.2)
-
Step 400
400 (this color)
#819CD4
oklch(69.4% 0.088 264.4)
-
Step 500
500
#6788CE
oklch(63.2% 0.112 264.2)
-
Step 600
600
#4E70BB
oklch(55.5% 0.123 264.4)
-
Step 700
700
#3F5EA1
oklch(49.2% 0.114 264)
-
Step 800
800
#344D83
oklch(42.8% 0.095 264.1)
-
Step 900
900
#2E4069
oklch(37.7% 0.074 265.1)
-
Step 950
950
#1B263D
oklch(27% 0.046 264.1)
#819CD4 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) | #89A0D6 | 0.016 |
| Deuteranopia (no green cones) | #8099D3 | 0.008 |
| Tritanopia (no blue cones) | #66A8AF | 0.080 |
| Achromatopsia (no color) | #9C9C9C | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #819CD4
#819CD4
oklch(69.4% 0.088 264.4)
- #B6985A
#B6985A
oklch(69.3% 0.088 84.3)
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 #819CD4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.055
- Cool Gray #8D99AE ΔE 0.056
- Cornflower Blue #6495ED ΔE 0.057
- Perrywinkle #8F8CE7 ΔE 0.059
- Bluey Grey #89A0B0 ΔE 0.059
- Bluegrey #85A3B2 ΔE 0.060
- Periwinkle Blue #8F99FB ΔE 0.064
- Faded Blue #658CBB ΔE 0.066
Use #819CD4 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.