#3A54BC
Closest named color: Warm Blue (#4B57DB). oklch(48.7% 0.166 268.8), rgb(58, 84, 188).
Aa
White text reads best on this color (6.61:1).
About this color
#3A54BC is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.166 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.054 away. White text reads best on it, at 6.61:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.17:1 |
| White text | 6.61:1 |
Values
| HEX | #3A54BC |
| RGB | rgb(58, 84, 188) |
| HSL | hsl(228, 53%, 48%) |
| OKLCH | oklch(48.7% 0.166 268.8) |
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 #3A54BC | 6.61:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #3A54BC | 3.17:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #3A54BC text on white | 6.61:1 | AA | Lc 82.3 | Fine for body text |
| #3A54BC text on black | 3.17:1 | AA large text | Lc -19.6 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CDD9F8
oklch(88.6% 0.045 268.7)
-
Step 300
300
#ABBFF6
oklch(80.9% 0.081 269)
-
Step 400
400
#7F9CF1
oklch(70.7% 0.129 268.7)
-
Step 500
500
#6181EC
oklch(63.1% 0.164 268.8)
-
Step 600
600
#4968DA
oklch(55.7% 0.178 268.6)
-
Step 700
700 (this color)
#3A54BC
oklch(48.7% 0.166 268.8)
-
Step 800
800
#314699
oklch(42.6% 0.138 269.1)
-
Step 900
900
#2A3C7A
oklch(37.7% 0.108 268.6)
-
Step 950
950
#192447
oklch(27.1% 0.067 268.5)
#3A54BC 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) | #0063C0 | 0.045 |
| Deuteranopia (no green cones) | #0057BA | 0.036 |
| Tritanopia (no blue cones) | #006D80 | 0.134 |
| Achromatopsia (no color) | #5D5D5D | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A54BC
#3A54BC
oklch(48.7% 0.166 268.8)
- #765C00
#765C00
oklch(48.7% 0.1 89.5)
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 #3A54BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.054
- Blue Blue #2242C7 ΔE 0.055
- Iris #6258C4 ΔE 0.058
- Blue With A Hint Of Purple #533CC6 ΔE 0.060
- Mid Blue #276AB3 ΔE 0.062
- Majorelle Blue #3F37C9 ΔE 0.065
- Blurple #5539CC ΔE 0.068
- Bluey Purple #6241C7 ΔE 0.068
Use #3A54BC 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.