#674DB8
Closest named color: Iris (#6258C4). oklch(50.4% 0.162 290.6), rgb(103, 77, 184).
Aa
White text reads best on this color (6.30:1).
About this color
#674DB8 is a medium-dark, vivid purple. In OKLCH its lightness is 50%, its chroma 0.162 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.031 away. White text reads best on it, at 6.30:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.162) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.33:1 |
| White text | 6.30:1 |
Values
| HEX | #674DB8 |
| RGB | rgb(103, 77, 184) |
| HSL | hsl(255, 43%, 51%) |
| OKLCH | oklch(50.4% 0.162 290.6) |
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 #674DB8 | 6.30:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #674DB8 | 3.33:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #674DB8 text on white | 6.30:1 | AA | Lc 81.1 | Fine for body text |
| #674DB8 text on black | 3.33:1 | AA large text | Lc -20.8 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F8
oklch(93.6% 0.021 288.9)
-
Step 200
200
#D8D5F5
oklch(88.5% 0.044 289.8)
-
Step 300
300
#C0B8F0
oklch(80.8% 0.079 291.1)
-
Step 400
400
#A192E9
oklch(70.8% 0.126 290.7)
-
Step 500
500
#8B74E2
oklch(63.1% 0.161 290.7)
-
Step 600
600
#765AD0
oklch(55.6% 0.175 290.5)
-
Step 700
700 (this color)
#674DB8
oklch(50.4% 0.162 290.6)
-
Step 800
800
#513D91
oklch(42.7% 0.133 290.6)
-
Step 900
900
#433574
oklch(37.8% 0.104 290.8)
-
Step 950
950
#271F44
oklch(26.9% 0.067 291.2)
#674DB8 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) | #0262BC | 0.100 |
| Deuteranopia (no green cones) | #0E5DB6 | 0.097 |
| Tritanopia (no blue cones) | #4F657B | 0.132 |
| Achromatopsia (no color) | #606060 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #674DB8
#674DB8
oklch(50.4% 0.162 290.6)
- #686900
#686900
oklch(50.3% 0.11 110.4)
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 #674DB8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.031
- Bluey Purple #6241C7 ΔE 0.037
- Slate Blue #6A5ACD ΔE 0.043
- Light Indigo #6D5ACF ΔE 0.047
- Dark Periwinkle #665FD1 ΔE 0.055
- Blue With A Hint Of Purple #533CC6 ΔE 0.058
- Blurple #5539CC ΔE 0.063
- Warm Blue #4B57DB ΔE 0.069
Use #674DB8 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.