#5257C1
Closest named color: Iris (#6258C4). oklch(51.1% 0.163 276.9), rgb(82, 87, 193).
Aa
White text reads best on this color (6.01:1).
About this color
#5257C1 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.163 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.025 away. White text reads best on it, at 6.01:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.49:1 |
| White text | 6.01:1 |
Values
| HEX | #5257C1 |
| RGB | rgb(82, 87, 193) |
| HSL | hsl(237, 47%, 54%) |
| OKLCH | oklch(51.1% 0.163 276.9) |
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 #5257C1 | 6.01:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #5257C1 | 3.49:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #5257C1 text on white | 6.01:1 | AA | Lc 79.7 | Fine for body text |
| #5257C1 text on black | 3.49:1 | AA large text | Lc -22.1 | 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
#D1D7F7
oklch(88.5% 0.044 277.1)
-
Step 300
300
#B3BDF4
oklch(81% 0.079 276.5)
-
Step 400
400
#8D98EE
oklch(70.6% 0.126 277.1)
-
Step 500
500
#737CE9
oklch(63.1% 0.162 277.1)
-
Step 600
600
#5D63D7
oklch(55.7% 0.175 276.9)
-
Step 700
700 (this color)
#5257C1
oklch(51.1% 0.163 276.9)
-
Step 800
800
#3F4397
oklch(42.8% 0.135 277)
-
Step 900
900
#353978
oklch(37.6% 0.106 277.3)
-
Step 950
950
#1F2246
oklch(27% 0.066 277.4)
#5257C1 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) | #0D68C5 | 0.064 |
| Deuteranopia (no green cones) | #005EBF | 0.063 |
| Tritanopia (no blue cones) | #0B7083 | 0.144 |
| Achromatopsia (no color) | #636363 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5257C1
#5257C1
oklch(51.1% 0.163 276.9)
- #786600
#786600
oklch(51.2% 0.106 97)
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 #5257C1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.025
- Warm Blue #4B57DB ΔE 0.041
- Slate Blue #6A5ACD ΔE 0.042
- Dark Periwinkle #665FD1 ΔE 0.044
- Light Indigo #6D5ACF ΔE 0.047
- Bluey Purple #6241C7 ΔE 0.052
- Blue With A Hint Of Purple #533CC6 ΔE 0.060
- Royal Blue #4169E1 ΔE 0.064
Use #5257C1 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.