#616BD7
Closest named color: Dark Periwinkle (#665FD1). oklch(57.5% 0.163 276), rgb(97, 107, 215).
Aa
Black text reads best on this color (4.59:1).
About this color
#616BD7 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.163 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.030 away. Black text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.59:1 |
| White text | 4.57:1 |
Values
| HEX | #616BD7 |
| RGB | rgb(97, 107, 215) |
| HSL | hsl(235, 60%, 61%) |
| OKLCH | oklch(57.5% 0.163 276) |
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 #616BD7 | 4.57:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #616BD7 | 4.59:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #616BD7 text on white | 4.57:1 | AA | Lc 71.5 | Content text, not long reading |
| #616BD7 text on black | 4.59:1 | AA | Lc -30.2 | Non-text elements, placeholder text |
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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D1D7F5
oklch(88.4% 0.042 276.6)
-
Step 300
300
#B3BDF1
oklch(80.9% 0.074 276.1)
-
Step 400
400
#8D9AE9
oklch(70.8% 0.116 275.9)
-
Step 500
500
#727EE3
oklch(63% 0.151 276.1)
-
Step 600
600 (this color)
#616BD7
oklch(57.5% 0.163 276)
-
Step 700
700
#4C53B5
oklch(49% 0.153 276.1)
-
Step 800
800
#3E4592
oklch(42.7% 0.125 275.8)
-
Step 900
900
#343B75
oklch(37.8% 0.098 275.5)
-
Step 950
950
#1F2344
oklch(27.1% 0.061 276.3)
#616BD7 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) | #347BDB | 0.055 |
| Deuteranopia (no green cones) | #2171D5 | 0.060 |
| Tritanopia (no blue cones) | #248397 | 0.143 |
| Achromatopsia (no color) | #767676 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #616BD7
#616BD7
oklch(57.5% 0.163 276)
- #8E7700
#8E7700
oklch(57.4% 0.118 95.5)
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 #616BD7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.030
- Royal Blue #4169E1 ΔE 0.041
- Slate Blue #6A5ACD ΔE 0.042
- Light Indigo #6D5ACF ΔE 0.043
- Medium Slate Blue #7B68EE ΔE 0.052
- Iris #6258C4 ΔE 0.052
- Neon Blue #4361EE ΔE 0.059
- Cornflower #6A79F7 ΔE 0.059
Use #616BD7 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.