#5351DB
Closest named color: Warm Blue (#4B57DB). oklch(52.2% 0.205 277.3), rgb(83, 81, 219).
Aa
White text reads best on this color (5.88:1).
About this color
#5351DB is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.205 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.015 away. White text reads best on it, at 5.88:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.205) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.56:1 |
| White text | 5.88:1 |
Values
| HEX | #5351DB |
| RGB | rgb(83, 81, 219) |
| HSL | hsl(241, 66%, 59%) |
| OKLCH | oklch(52.2% 0.205 277.3) |
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 #5351DB | 5.88:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #5351DB | 3.56:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #5351DB text on white | 5.88:1 | AA | Lc 78.9 | Fine for body text |
| #5351DB text on black | 3.56:1 | AA large text | Lc -22.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E5E9FE
oklch(93.7% 0.029 277.2)
-
Step 200
200
#CFD7FE
oklch(88.6% 0.054 276.1)
-
Step 300
300
#B1BBFF
oklch(80.9% 0.097 277.5)
-
Step 400
400
#8A95FF
oklch(70.7% 0.154 277.2)
-
Step 500
500
#7075FF
oklch(63.1% 0.201 277.4)
-
Step 600
600
#5B58EF
oklch(55.5% 0.22 277.3)
-
Step 700
700 (this color)
#5351DB
oklch(52.2% 0.205 277.3)
-
Step 800
800
#3D3CA8
oklch(42.7% 0.168 277)
-
Step 900
900
#333585
oklch(37.7% 0.131 277)
-
Step 950
950
#1E204E
oklch(27.1% 0.083 277.4)
#5351DB 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) | #006ADF | 0.074 |
| Deuteranopia (no green cones) | #005ED8 | 0.064 |
| Tritanopia (no blue cones) | #00748E | 0.172 |
| Achromatopsia (no color) | #646464 | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5351DB
#5351DB
oklch(52.2% 0.205 277.3)
- #7B6900
#7B6900
oklch(52.2% 0.108 97.3)
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 #5351DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.015
- Neon Blue #4361EE ΔE 0.047
- Iris #6258C4 ΔE 0.047
- Slate Blue #6A5ACD ΔE 0.048
- Dark Periwinkle #665FD1 ΔE 0.048
- Bluey Purple #6241C7 ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.051
- Blurple #5539CC ΔE 0.053
Use #5351DB 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.