#5B54D7
Closest named color: Warm Blue (#4B57DB). oklch(52.9% 0.194 279.8), rgb(91, 84, 215).
Aa
White text reads best on this color (5.68:1).
About this color
#5B54D7 is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.194 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.023 away. White text reads best on it, at 5.68:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.194) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.69:1 |
| White text | 5.68:1 |
Values
| HEX | #5B54D7 |
| RGB | rgb(91, 84, 215) |
| HSL | hsl(243, 62%, 59%) |
| OKLCH | oklch(52.9% 0.194 279.8) |
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 #5B54D7 | 5.68:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #5B54D7 | 3.69:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #5B54D7 text on white | 5.68:1 | AA | Lc 78.0 | Fine for body text |
| #5B54D7 text on black | 3.69:1 | AA large text | Lc -23.8 | 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 600.
-
Step 50
50
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E8FB
oklch(93.5% 0.026 281.1)
-
Step 200
200
#D2D6FA
oklch(88.4% 0.05 280.3)
-
Step 300
300
#B5BBF9
oklch(80.9% 0.088 279.9)
-
Step 400
400
#9095F6
oklch(70.7% 0.141 279.9)
-
Step 500
500
#7778F2
oklch(63.2% 0.178 279.6)
-
Step 600
600 (this color)
#5B54D7
oklch(52.9% 0.194 279.8)
-
Step 700
700
#524BC3
oklch(49.1% 0.181 280)
-
Step 800
800
#433F9E
oklch(42.9% 0.15 279.9)
-
Step 900
900
#37367D
oklch(37.6% 0.117 279.8)
-
Step 950
950
#202149
oklch(27.1% 0.073 279.3)
#5B54D7 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) | #006CDB | 0.080 |
| Deuteranopia (no green cones) | #0062D4 | 0.074 |
| Tritanopia (no blue cones) | #0A748D | 0.168 |
| Achromatopsia (no color) | #676767 | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B54D7
#5B54D7
oklch(52.9% 0.194 279.8)
- #7B6C00
#7B6C00
oklch(52.9% 0.11 99.7)
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 #5B54D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.023
- Slate Blue #6A5ACD ΔE 0.033
- Iris #6258C4 ΔE 0.034
- Dark Periwinkle #665FD1 ΔE 0.034
- Light Indigo #6D5ACF ΔE 0.035
- Bluey Purple #6241C7 ΔE 0.047
- Neon Blue #4361EE ΔE 0.051
- Royal Blue #4169E1 ΔE 0.055
Use #5B54D7 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.