#5174EA
Closest named color: Royal Blue (#4169E1). oklch(59.6% 0.182 268), rgb(81, 116, 234).
Aa
Black text reads best on this color (5.03:1).
About this color
#5174EA is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.182 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.037 away. Black text reads best on it, at 5.03:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.182) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 5.03:1 |
| White text | 4.16:1 |
Values
| HEX | #5174EA |
| RGB | rgb(81, 116, 234) |
| HSL | hsl(226, 78%, 62%) |
| OKLCH | oklch(59.6% 0.182 268) |
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 #5174EA | 4.16:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #5174EA | 5.03:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #5174EA text on white | 4.16:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #5174EA text on black | 5.03:1 | AA | Lc -33.3 | 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 500.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CBD9FB
oklch(88.6% 0.049 267.7)
-
Step 300
300
#A8BFFB
oklch(80.9% 0.089 268.2)
-
Step 400
400
#7B9BF9
oklch(70.6% 0.143 268.4)
-
Step 500
500 (this color)
#5174EA
oklch(59.6% 0.182 268)
-
Step 600
600
#4365E5
oklch(55.6% 0.198 268)
-
Step 700
700
#3553C7
oklch(49.1% 0.184 267.9)
-
Step 800
800
#2C45A1
oklch(42.8% 0.152 267.9)
-
Step 900
900
#273B80
oklch(37.7% 0.119 268.1)
-
Step 950
950
#17234B
oklch(27% 0.076 268.4)
#5174EA 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) | #2E83EE | 0.042 |
| Deuteranopia (no green cones) | #0075E8 | 0.047 |
| Tritanopia (no blue cones) | #0090A4 | 0.152 |
| Achromatopsia (no color) | #7C7C7C | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5174EA
#5174EA
oklch(59.6% 0.182 268)
- #9D7900
#9D7900
oklch(59.5% 0.122 87.7)
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 #5174EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.037
- Cornflower #6A79F7 ΔE 0.039
- Clear Blue #247AFD ΔE 0.043
- Neon Blue #4361EE ΔE 0.051
- Cerulean Blue #056EEE ΔE 0.053
- Soft Blue #6488EA ΔE 0.059
- Medium Slate Blue #7B68EE ΔE 0.059
- Dark Periwinkle #665FD1 ΔE 0.062
Use #5174EA 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.