#5158DE
Closest named color: Warm Blue (#4B57DB). oklch(53.5% 0.201 275), rgb(81, 88, 222).
Aa
White text reads best on this color (5.52:1).
About this color
#5158DE is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.201 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.010 away. White text reads best on it, at 5.52:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.201) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.80:1 |
| White text | 5.52:1 |
Values
| HEX | #5158DE |
| RGB | rgb(81, 88, 222) |
| HSL | hsl(237, 68%, 59%) |
| OKLCH | oklch(53.5% 0.201 275) |
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 #5158DE | 5.52:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #5158DE | 3.80:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #5158DE text on white | 5.52:1 | AA | Lc 77.1 | Fine for body text |
| #5158DE text on black | 3.80:1 | AA large text | Lc -24.7 | 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 600.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CFD7FB
oklch(88.5% 0.05 275.4)
-
Step 300
300
#AFBCFB
oklch(80.8% 0.09 275.2)
-
Step 400
400
#8797FA
oklch(70.7% 0.145 275.1)
-
Step 500
500
#6C7AF7
oklch(63.2% 0.185 275)
-
Step 600
600 (this color)
#5158DE
oklch(53.5% 0.201 275)
-
Step 700
700
#474DC7
oklch(49% 0.186 275)
-
Step 800
800
#3A40A1
oklch(42.6% 0.154 275)
-
Step 900
900
#313880
oklch(37.7% 0.12 274.9)
-
Step 950
950
#1C214B
oklch(26.9% 0.077 274.9)
#5158DE 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) | #006FE2 | 0.068 |
| Deuteranopia (no green cones) | #0062DB | 0.058 |
| Tritanopia (no blue cones) | #007993 | 0.166 |
| Achromatopsia (no color) | #696969 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5158DE
#5158DE
oklch(53.5% 0.201 275)
- #816B00
#816B00
oklch(53.3% 0.109 94.7)
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 #5158DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.010
- Neon Blue #4361EE ΔE 0.033
- Royal Blue #4169E1 ΔE 0.041
- Dark Periwinkle #665FD1 ΔE 0.042
- Slate Blue #6A5ACD ΔE 0.046
- Iris #6258C4 ΔE 0.047
- Light Indigo #6D5ACF ΔE 0.048
- Azul #1D5DEC ΔE 0.051
Use #5158DE 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.