#3340A2
Closest named color: Sapphire (#2138AB). oklch(42.3% 0.158 272), rgb(51, 64, 162).
Aa
White text reads best on this color (8.76:1).
About this color
#3340A2 is a dark, vivid blue. In OKLCH its lightness is 42%, its chroma 0.158 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.033 away. White text reads best on it, at 8.76:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #3340A2 |
| RGB | rgb(51, 64, 162) |
| HSL | hsl(233, 52%, 42%) |
| OKLCH | oklch(42.3% 0.158 272) |
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 #3340A2 | 8.76:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #3340A2 | 2.39:1 | Fails | Lc 14.4 | Not readable |
| #3340A2 text on white | 8.76:1 | AAA | Lc 89.6 | Fine for body text |
| #3340A2 text on black | 2.39:1 | Fails | Lc -12.7 | Not readable |
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 800.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FC
oklch(93.5% 0.027 271.9)
-
Step 200
200
#CDD8FC
oklch(88.5% 0.051 271.9)
-
Step 300
300
#ACBDFD
oklch(80.9% 0.093 272.7)
-
Step 400
400
#8199FC
oklch(70.8% 0.147 271.9)
-
Step 500
500
#647BF9
oklch(63% 0.188 272.1)
-
Step 600
600
#4E60E8
oklch(55.5% 0.205 272.2)
-
Step 700
700
#404FCA
oklch(49.2% 0.19 272.1)
-
Step 800
800 (this color)
#3340A2
oklch(42.3% 0.158 272)
-
Step 900
900
#2C3982
oklch(37.8% 0.123 271.6)
-
Step 950
950
#1A224C
oklch(27.1% 0.078 272.1)
#3340A2 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) | #0050A5 | 0.047 |
| Deuteranopia (no green cones) | #0046A0 | 0.037 |
| Tritanopia (no blue cones) | #00586A | 0.129 |
| Achromatopsia (no color) | #4B4B4B | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3340A2
#3340A2
oklch(42.3% 0.158 272)
- #5F4C00
#5F4C00
oklch(42.4% 0.087 92.3)
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 #3340A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.033
- Blueberry #464196 ΔE 0.034
- Cobalt #1E488F ΔE 0.043
- Dark Slate Blue #483D8B ΔE 0.048
- Blue Blue #2242C7 ΔE 0.061
- Dusk Blue #26538D ΔE 0.065
- Majorelle Blue #3F37C9 ΔE 0.066
- Indigo Blue #3A18B1 ΔE 0.071
Use #3340A2 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.