#616DA4
Closest named color: Dull Blue (#49759C). oklch(54.8% 0.087 273.8), rgb(97, 109, 164).
Aa
White text reads best on this color (4.96:1).
About this color
#616DA4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.087 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.040 away. White text reads best on it, at 4.96:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.23:1 |
| White text | 4.96:1 |
Values
| HEX | #616DA4 |
| RGB | rgb(97, 109, 164) |
| HSL | hsl(229, 27%, 51%) |
| OKLCH | oklch(54.8% 0.087 273.8) |
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 #616DA4 | 4.96:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #616DA4 | 4.23:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #616DA4 text on white | 4.96:1 | AA | Lc 74.3 | Content text, not long reading |
| #616DA4 text on black | 4.23:1 | AA large text | Lc -27.4 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D4D8E8
oklch(88.4% 0.022 274.7)
-
Step 300
300
#B8BFDB
oklch(80.8% 0.04 274.4)
-
Step 400
400
#949EC8
oklch(70.6% 0.063 274.3)
-
Step 500
500
#7A86BA
oklch(63.1% 0.08 273.9)
-
Step 600
600 (this color)
#616DA4
oklch(54.8% 0.087 273.8)
-
Step 700
700
#525D8F
oklch(49.1% 0.081 273.6)
-
Step 800
800
#434C74
oklch(42.7% 0.068 273.5)
-
Step 900
900
#39405E
oklch(37.9% 0.052 273.6)
-
Step 950
950
#212537
oklch(26.9% 0.034 274.3)
#616DA4 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) | #5A73A6 | 0.018 |
| Deuteranopia (no green cones) | #556DA3 | 0.016 |
| Tritanopia (no blue cones) | #4C7881 | 0.077 |
| Achromatopsia (no color) | #707070 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #616DA4
#616DA4
oklch(54.8% 0.087 273.8)
- #82702F
#82702F
oklch(54.9% 0.087 93.8)
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 #616DA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.040
- French Blue #436BAD ΔE 0.040
- Flat Blue #3C73A8 ΔE 0.043
- Muted Blue #3B719F ΔE 0.046
- Stormy Blue #507B9C ΔE 0.048
- Metallic Blue #4F738E ΔE 0.050
- Cerulean #457B9D ΔE 0.053
- Dark Lavender #856798 ΔE 0.057
Use #616DA4 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.