#5159D2
Closest named color: Warm Blue (#4B57DB). oklch(52.7% 0.184 275.3), rgb(81, 89, 210).
Aa
White text reads best on this color (5.66:1).
About this color
#5159D2 is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.184 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.017 away. White text reads best on it, at 5.66:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.184) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.70:1 |
| White text | 5.66:1 |
Values
| HEX | #5159D2 |
| RGB | rgb(81, 89, 210) |
| HSL | hsl(236, 59%, 57%) |
| OKLCH | oklch(52.7% 0.184 275.3) |
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 #5159D2 | 5.66:1 | AA | Lc -83.2 | Fine for body text |
| Black text on #5159D2 | 3.70:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #5159D2 text on white | 5.66:1 | AA | Lc 77.9 | Fine for body text |
| #5159D2 text on black | 3.70:1 | AA large text | Lc -23.9 | 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 600.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D0D7F8
oklch(88.4% 0.046 276)
-
Step 300
300
#B1BDF6
oklch(80.9% 0.082 275.2)
-
Step 400
400
#8998F2
oklch(70.6% 0.133 275.3)
-
Step 500
500
#6E7CEE
oklch(63.1% 0.17 275.2)
-
Step 600
600 (this color)
#5159D2
oklch(52.7% 0.184 275.3)
-
Step 700
700
#4950BF
oklch(49% 0.171 275.4)
-
Step 800
800
#3C439A
oklch(42.8% 0.14 275.3)
-
Step 900
900
#32397B
oklch(37.6% 0.111 275.2)
-
Step 950
950
#1D2248
oklch(27% 0.07 275)
#5159D2 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) | #006DD6 | 0.066 |
| Deuteranopia (no green cones) | #0061D0 | 0.058 |
| Tritanopia (no blue cones) | #00768D | 0.155 |
| Achromatopsia (no color) | #676767 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5159D2
#5159D2
oklch(52.7% 0.184 275.3)
- #7E6900
#7E6900
oklch(52.6% 0.108 95.2)
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 #5159D2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.017
- Iris #6258C4 ΔE 0.032
- Dark Periwinkle #665FD1 ΔE 0.035
- Slate Blue #6A5ACD ΔE 0.038
- Light Indigo #6D5ACF ΔE 0.042
- Royal Blue #4169E1 ΔE 0.044
- Neon Blue #4361EE ΔE 0.047
- Bluey Purple #6241C7 ΔE 0.057
Use #5159D2 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.