#5153C1
Closest named color: Iris (#6258C4). oklch(50.3% 0.168 277.7), rgb(81, 83, 193).
Aa
White text reads best on this color (6.25:1).
About this color
#5153C1 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.168 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.030 away. White text reads best on it, at 6.25:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.35:1 |
| White text | 6.25:1 |
Values
| HEX | #5153C1 |
| RGB | rgb(81, 83, 193) |
| HSL | hsl(239, 47%, 54%) |
| OKLCH | oklch(50.3% 0.168 277.7) |
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 #5153C1 | 6.25:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #5153C1 | 3.35:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #5153C1 text on white | 6.25:1 | AA | Lc 80.8 | Fine for body text |
| #5153C1 text on black | 3.35:1 | AA large text | Lc -21.0 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D1D7F8
oklch(88.5% 0.046 277.3)
-
Step 300
300
#B3BCF5
oklch(80.8% 0.081 277.4)
-
Step 400
400
#8E97F1
oklch(70.7% 0.131 278.1)
-
Step 500
500
#747BEC
oklch(63.2% 0.167 277.8)
-
Step 600
600
#5E61DA
oklch(55.6% 0.181 277.7)
-
Step 700
700 (this color)
#5153C1
oklch(50.3% 0.168 277.7)
-
Step 800
800
#404299
oklch(42.8% 0.139 277.8)
-
Step 900
900
#35397A
oklch(37.8% 0.109 277.2)
-
Step 950
950
#1F2247
oklch(27.1% 0.068 277.3)
#5153C1 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) | #0065C5 | 0.067 |
| Deuteranopia (no green cones) | #005CBF | 0.063 |
| Tritanopia (no blue cones) | #046D82 | 0.146 |
| Achromatopsia (no color) | #606060 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5153C1
#5153C1
oklch(50.3% 0.168 277.7)
- #746400
#746400
oklch(50.3% 0.104 98.2)
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 #5153C1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.030
- Warm Blue #4B57DB ΔE 0.041
- Bluey Purple #6241C7 ΔE 0.045
- Slate Blue #6A5ACD ΔE 0.047
- Blue With A Hint Of Purple #533CC6 ΔE 0.050
- Dark Periwinkle #665FD1 ΔE 0.051
- Light Indigo #6D5ACF ΔE 0.052
- Blurple #5539CC ΔE 0.056
Use #5153C1 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.