#5671DF
Closest named color: Royal Blue (#4169E1). oklch(58.5% 0.17 270.1), rgb(86, 113, 223).
Aa
Black text reads best on this color (4.82:1).
About this color
#5671DF is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.170 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.033 away. Black text reads best on it, at 4.82:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.170) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.82:1 |
| White text | 4.35:1 |
Values
| HEX | #5671DF |
| RGB | rgb(86, 113, 223) |
| HSL | hsl(228, 68%, 61%) |
| OKLCH | oklch(58.5% 0.17 270.1) |
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 #5671DF | 4.35:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #5671DF | 4.82:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #5671DF text on white | 4.35:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #5671DF text on black | 4.82:1 | AA | Lc -31.8 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED8F6
oklch(88.4% 0.043 270.9)
-
Step 300
300
#ADBFF3
oklch(80.9% 0.076 269.8)
-
Step 400
400
#839CED
oklch(70.7% 0.122 270)
-
Step 500
500
#6681E7
oklch(63.1% 0.156 270.3)
-
Step 600
600 (this color)
#5671DF
oklch(58.5% 0.17 270.1)
-
Step 700
700
#4056B9
oklch(49.2% 0.158 270.2)
-
Step 800
800
#344795
oklch(42.7% 0.13 269.8)
-
Step 900
900
#2D3C77
oklch(37.6% 0.102 270.2)
-
Step 950
950
#1A2446
oklch(27.1% 0.065 269.4)
#5671DF 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) | #367FE3 | 0.042 |
| Deuteranopia (no green cones) | #1673DD | 0.049 |
| Tritanopia (no blue cones) | #008A9D | 0.145 |
| Achromatopsia (no color) | #797979 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5671DF
#5671DF
oklch(58.5% 0.17 270.1)
- #977700
#977700
oklch(58.4% 0.119 89.8)
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 #5671DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.033
- Dark Periwinkle #665FD1 ΔE 0.048
- Cornflower #6A79F7 ΔE 0.049
- Neon Blue #4361EE ΔE 0.053
- Medium Slate Blue #7B68EE ΔE 0.058
- Clear Blue #247AFD ΔE 0.058
- Cerulean Blue #056EEE ΔE 0.059
- Slate Blue #6A5ACD ΔE 0.062
Use #5671DF 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.